#hubble

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The measurements which are reported for quasars are already corrected for redshift and other relativistic effects. An assumption which is occasionally used the calculations of total energy output, however, is that they emit all their radiation "isotrpically." That means we assume the same amount of energy is radiated in all directions. Quasars, however, are probably the result of high-energy jets from supermassive black holes which happen to be pointed directly at us. If we were to view the same object from a different angle, we would not observe the same high energies. Clearly, such jets are not isotropic. Therefore, isotropic energy estimates for quasars are probably vast overestimates. Astronomers understand this and try not to compare such estimates to other phenomena. Eiter way, though, quasars are some of the most energetic objects in the sky.

#astronomy | #astronomer | #astrophysics | #space | #cosmos |#science | #physics | #universe | #stars | #planet | #astronaut | #constellation |#interstellar | #spacetravel | #outerspace | #sun | #moon | #astrobiology | #NASA | #Hubble | #telescope | #galaxy | #stargazing | #starstuff | #nature | #photography | #astrophotography |#curiosity | #exploration | #nasabeyond


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Nébuleuse de la Carène #nasa#hubble#space#colorfull


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If you saw the dawn's early light from Cape Canaveral Air Force Station last Friday, June 29, then you could have seen this rocket's red glare. The single 277-second long exposure, made from the roof of NASA's Vehicle Assembly building, shows a predawn Falcon 9 launch, the rocket streaking eastward into the sky about 45 minutes before sunrise. At high altitude, its stage separation plume is brightly lit by the Sun still below the eastern horizon. The Falcon 9 rocket's first stage had been launched before, lofting the Transiting Exoplanet Survey Satellite (TESS) into orbit on April 18, only 72 days earlier. For this launch of SpaceX Commercial Resupply Service mission 15 (CRS-15) it carried an also previously flown Dragon capsule. But no further reuse of this Falcon 9 was planned so no dramatic first stage landing followed the launch. The Dragon capsule arrived at the International Space Station on July 2.

Image Credit & Copyright: Michael Seeley
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"Big Kids on the Hill"

I love it when a group of grown men and women get such a kick out of photographing old kids toys ... oh, and the beautiful night sky.
Nikon D750 Nikon 20mm f1.8 20 sec exposure iso2500

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NGC 5866💫 This is a unique NASA/ESA Hubble Space Telescope view of the disk galaxy NGC 5866 tilted nearly edge-on to our line-of-sight.

Hubble's sharp vision reveals a crisp dust lane dividing the galaxy into two halves. The image highlights the galaxy's structure: a subtle, reddish bulge surrounding a bright nucleus, a blue disk of stars running parallel to the dust lane, and a transparent outer halo. - Credit: NASA, ESA, and The Hubble. #mars#cosmos#solaris#solarsystem#sirius#dream#stars#nasa#spacex#space#hubble#jpl


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Close-up view of the plaque which the Apollo 11 astronauts left on the moon in commemoration of the historic lunar landing mission. The plaque was attached to the ladder on the landing gear strut on the descent stage of the Apollo 11 Lunar Module (LM). The plaque was covered with a thin sheet of stainless steel during flight. Astronaut Michael Collins, command module pilot, remained with the Command and Service Modules (CSM) in lunar orbit while astronauts Neil A. Armstrong, commander, and Edwin E. Aldrin Jr., lunar module pilot, explored the moon.
The plaque bears a map of the Earth and this inscription: -

HERE MEN FROM THE PLANET EARTH
FIRST SET FOOT UPON THE MOON JULY 1969 A.D. WE
CAME IN PEACE FOR ALL MANKIND


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Clouds and Crosses over Haleakala. Image Credit & Copyright: Wally Pacholka (TWAN) #night #m45 #stars #pleiades #Orion #Hubble #cosmos #space #exploration #galaxy #astrophotography #deepspace #galaxy #Cartwheel #Nebula #nasa #space #telescope #astronomia #sun #space
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📷from @astro_photography_
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During 2½ hours of surface exploration, the crew set up experiments, collected 47 pounds of lunar surface material for analysis back on Earth, planted the U.S Flag, and left a message for all mankind. In this photograph, Aldrin walks past some rocks, easily carrying scientific equipment which would have been too heavy to carry on Earth. The two packages made up the Early Apollo Scientific Experiment Package (EASEP) on Apollo 11. On the left is the Passive Seismic Experiment Package (PSEP) and on the right is the Laser Ranging Retroreflector (LRR) -

In image 2, two members of the Apollo 11 lunar landing mission are seen to participate in a simulation of deploying and using lunar tools on the surface of the moon. The rehearsal took place during a training exercise in building 9 on April 22, 1969. Astronaut Edwin E. Aldrin Jr. (on left), lunar module pilot, uses a scoop and tongs to pick up samples. Astronaut Neil A. Armstrong, Apollo 11 commander, holds the bag to receive the sample. In the background is a Lunar Module (LM) mock-up -

Enjoy!


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What a significant day to revive JourneyBeyondEarth!
49 years ago, on this day, aboard a Saturn V launch vehicle, the Apollo 11 mission launched from The Kennedy Space Center, Florida on July 16, 1969 and safely returned to Earth on July 24, 1969.
The space vehicle is shown here during the rollout for launch preparation. The 3-man crew aboard the flight consisted of Neil A. Armstrong, commander; Michael Collins, Command Module pilot; and Edwin E. Aldrin Jr -

In image 2, personnel atop the 402-ft. Mobile Service Structure is looking back at the Apollo 11 spacecraft as the tower is moved away during a Countdown Demonstration Test on 11 July 1969 -

Stay curious!


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James Webb, adalah Teleskop yang akan diluncurkan #NASA tahun 2021 mendatang. Teleskop ini akan lebih hebat dari Hubble sehingga mampu mengumpulkan citra alam semesta yang lebih baik dan lebih detail dari Hubble. .
Saking hebatnya ini Teleskop, jika ada seekor lebah di Bulan pun bisa terdeteksi.
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Kenapa bisa lebih hebat dari Hubble? karena James Webb dibekali cermin utama yang lebih besar dan lebih sensitif daripada Hubble. Belum lagi sematan teknologi tambahan lainnya yang lebih modern canggih dari Hubble.
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#nasa #telescope #hubble #space #sains #science


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Burst💥 of Celestial Fireworks !

Like a July 4 fireworks display, a young, glittering collection of stars resembles an aerial burst. The cluster is surrounded by clouds of interstellar gas and dust - the raw material for new star formation. The nebula, located 20,000 light-years away in the constellation Carina, contains a central cluster of huge, hot stars, called NGC 3603.

Appearing colorful and serene, this environment is anything but. Ultraviolet radiation and violent stellar winds have blown out an enormous cavity in the gas and dust enveloping the cluster. Most of the stars in the cluster were born around the same time but differ in size, mass, temperature and color. The course of a star's life is determined by its mass, so a cluster of a given age will contain stars in various stages of their lives, giving an opportunity for detailed analyses of stellar life cycles. NGC 3603 also contains some of the most massive stars known. These huge stars live fast and die young, burning through their hydrogen fuel quickly and ultimately ending their lives in supernova explosions.

This Hubble Space Telescope🔭 image was captured in August 2009 and December 2009 with the Wide Field Camera 3 in both visible and infrared light, which trace the glow of sulfur, hydrogen, and iron. 📷 Credit: NASA, ESA.

#hubble
#nebula #nasa #nature #science #cosmos


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ESA/Hubble Flashback: In 2013, astronomers highlighted NGC 6753, imaged here, as 1 of only 2 known spiral galaxies to permit detailed observations of their coronas. Credit: ESA / Hubble_Space / NASA / Acknowledgement: Judy Schmidt https://t.co/71BfRIyu6r https://t.co/odDVm9rfTE

#astronomynerd #universe #space #galaxy #stars #astrophotography
#astronomy #hubble #hubblehangout #outerspace #hubbletelescope
#interstellar #planet #costellation
#science #cosmology #planets
#cosmos #nasa #esa #eso #astronomyhistory #seti


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The Veil Nebula. The expanding remains of a massive star that exploded about 8,000 years ago. This pendant sits on a sterling silver chain and comes with a photo card with details of the Nebula on the reverse. #stargazing #instaspace #nslive #astronomy #space #stars #veilnebula #nasa #hubble #madeinnorthumberland #kirkharlecourtyard


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A Gorgeous 'Blue' Sand Dune Snakes Across Mars in This Awesome NASA photo.

A big Martian sand dune looks blue in this enhanced-color photo, which was taken on Jan. 24, 2018, by NASA's Mars Reconnaissance Orbiter. The dune is actually gray but stands out because it differs from its surroundings in composition and/or grain size. 📷 Credit: NASA/JPL-Caltech/University of Arizona

A big sand dune blazes in an electric blue on the Red Planet🔴 in a gorgeous photo by NASA's Mars Reconnaissance Orbiter (MRO).
🔭
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Before you get too excited about the exotic geological possibilities on alien worlds: As that reference to "enhanced color" suggests, the dune isn't actually blue.
#nasa #mars #redplanet #astrophotography #hubble #curiosity #rover #astrophysics #physics #cosmos #astronomy #science


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Felt like doing some night sky watching🔭🌌
- 1st pic is of the international space station, its the laregest artificial body in orbit
- 2nd pic is of the Hubble Space Telescope
- 3rd is of course Saturn
- And lastly is my favourite... Jupiter
Now i think im gonna go read one of my favourite books 📚... From the earth to the moon by Jules Verne written✒️in 1865 📜📖
Ill fall asleep and dream 😴 wonderful things

#nightskywatching #internationalspacestation #spacestation #artificial #orbit #hubble #telescope #hubbletelescope #saturn #jupiter #spaceexploration #nightsky #stars #constellations #milkyway
#fromtheearthtothemoon by #julesverne #1865


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IC 1101 galaxy

Located almost a billion light-years away, IC 1101 is the single largest galaxy that has ever been found in the observable universe. Just how large is it? At its largest point, this galaxy extends about 2 million light-years from its core, and it has a mass of about 100 trillion stars.


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What are those ghostly clouds near the Milky Way ?? 🌌🌌 Swipe left👉👉🌟 to view the answer !! Follow 🙌@astronomy.daily_ for more astro posts !! 🔮🌌


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NGC 7822: Stars and Dust Pillars in infrared
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“What man of you, having an hundred sheep, if he lose one of them, doth not leave the ninety and nine in the wilderness, and go after that which is lost, until he find it?”
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Young stars themselves are clearing out their nursery in NGC 7822. Within the nebula, bright edges and complex dust sculptures dominate this detailed skyscape taken in infrared light by NASA's Wide Field Infrared Survey Explorer (WISE) satellite. NGC 7822 lies at the edge of a giant molecular cloud toward the northern constellation Cepheus, a glowing star forming region that lies about 3,000 light-years away. The atomic emission of light by the nebula's gas is powered by energetic radiation from the hot stars, whose powerful winds and light also sculpt and erode the denser pillar shapes. Stars could still be forming inside the pillars by gravitational collapse, but as the pillars are eroded away, any forming stars will ultimately be cut off from their reservoir of star stuff. This field spans around 40 light-years at the estimated distance of NGC 7822.
©️ NASA (APOD)
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Sh2-155: The Cave Nebula
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“And Jesus came and touched them, and said, Arise, and be not afraid.”
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This colorful skyscape features the dusty, reddish glow of Sharpless catalog emission region Sh2-155, the Cave Nebula. About 2,400 light-years away, the scene lies along the plane of our Milky Way Galaxy toward the royal northern constellation of Cepheus. Astronomical explorations of the region reveal that it has formed at the boundary of the massive Cepheus B molecular cloud and the hot, young, blue stars of the Cepheus OB 3 association. The bright rim of ionized hydrogen gas is energized by the radiation from the hot stars, dominated by the bright blue O-type star above picture center. Radiation driven ionization fronts are likely triggering collapsing cores and new star formation within. Appropriately sized for a stellar nursery, the cosmic cave is over 10 light-years across.
©️ NASA (APOD)
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#amazing #astronomy #bible #bibletext #nasabeyond #constellation #creation #galaxy #hubble #hubbletelescope #interstellar #nature #nasa #cosmos #hubblehangout #space #universe #scripture #naturelovers #cosmology #science #hst


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The power of imagination makes us infinite.
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#space #universe #spacefacts #nasa #spacex #hubble #nebula #astronomy #star #galaxy #telescope #moon #mars #milkyway #supernova #blackhole #planet #earth #quasar #cosmology


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Impressive Picture. What would you title this picture? 🌌💫 Photo from: .trafford
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Update after working on this cosmic painting today. Added layers of detail, and worked on the stars/ lighting. Tomorrow I’ll be starting a new commission piece, and working on a couple other paintings including this one. Hope everyone has a great night! #boundlesscreations #outerspaceart #happyartistmovement #stars #followyourbliss #studioday #nebula #hubble #cosmicart #universe


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NGC 2174: Stars Versus Mountains
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“Always bearing about in the body the dying of the Lord Jesus, that the life also of Jesus might be made manifest in our body.”
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It's stars versus gas mountains in NGC 2174 and the stars are winning. More precisely, the energetic light and winds from massive newly formed stars are evaporating and dispersing the dark stellar nurseries in which they formed. The structures of NGC 2174 are actually much thinner than air and only appear as mountains due to relatively small amounts of opaque interstellar dust. A lesser known sight in the nebula-rich constellation Orion, NGC 2174 can be found with binoculars near the head of the celestial hunter. About 6,400 light-years distant, the entire glowing cosmic cloud covers an area larger than the full Moon and surrounds loose open clusters of young stars. The above image from the Hubble Space Telescope shows a dense interior region which spans only about three light years while adopting a color map that portrays otherwise red hydrogen emission in green hues and emphasizes sulfur emission in red and oxygen in blue. Within a few million years, the stars will likely win out completely and the entire dust mountain will be dispersed.
©️ NASA (APOD)
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#amazing #astronomy #beauty #chandra #bible #bibletext #nasabeyond #constellation #creation #galaxy #hubble #hubbletelescope #interstellar #nature #nasa #cosmos #hubblehangout #space #universe #scripture #naturelovers #cosmology #science #hst


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Planetary Nebula Abell 7
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“But above all things, my brethren, swear not, neither by heaven, neither by the earth, neither by any other oath: but let your yea be yea; and your nay, nay; lest ye fall into condemnation.”
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Very faint planetary nebula Abell 7 is some 1,800 light-years distant, just south of Orion in planet Earth's skies in the constellation Lepus, The Hare. Surrounded by Milky Way stars and near the line-of-sight to distant background galaxies, its generally simple spherical shape, about 8 light-years in diameter, is outlined in this deep telescopic image. Within its confines are beautiful, more complex details enhanced by the use of narrowband filters. Emission from hydrogen and nitrogen is shown in reddish hues with oxygen emission mapped to a bluish-green color, giving Abell 7 a more natural appearance that would otherwise be much too faint to be appreciated by eye. A planetary nebula represents a very brief final phase in stellar evolution that our own Sun will experience 5 billion years hence, as the nebula's central, once sun-like star shrugs off its outer layers. Abell 7 itself is estimated to be 20,000 years old. Its central star is seen here as a fading white dwarf some 10 billion years old.
©️ NASA (APOD)
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Every day UFO is seen all ever the world... The Aliens have an agreement, being able to have free access to land. However, they can not have direct contact with civilian humans, in order to avoid conflicts. Therefore it can enter orbit in the earth, to collect what it needs, and not having wars.
#ufo #aliens #hubble #nasa #access #conflicts #👽 #orbit #civilian #hubblespacetelescope #space #world
@aliens_space_world


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Regrann from @_margo_costa_ - To see a sunset from space must be an incredibly humbling experience. You don't see anything quite like this on Earth. This was taken by ESA astronaut Thomas Pesquet onboard the International Space Station. How are you guys today? ||
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Lovely Scene.. Rate the picture 1-10 🔭🌠 Photo from: @jazz_ramona


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Когда-то эти межгалактические вакуумы были сверхмассивными звездами. Когда она из таких звезд умирает, ее газообразные внешние слои «сдуваются», а ядро превращается в экстремально маленькую и плотную сферу. Представьте, к примеру, попытку поднять теннисный мяч, масса которого равна массе Солнца. Для такой астрономически высокой плотности понадобится сильнейшее гравитационное поле. Для того, чтобы избавиться от какого-либо гравитационного поля, вам необходимо путешествовать быстрее, чем с космической скоростью. Космическому кораблю удается достигнуть скорости 7 миль/сек. Чтобы преодолеть некоторые черные дыры, он должен был бы двигаться со скоростью больше чем 186000 миль/сек. – что превышает ее космический предел. Это значит, что ничто, даже свет – не может пройти сквозь черную дыру.

#astronomy #astronomer #astrophysics #space #cosmos #science #галактика #universe #stars #planet #constellation #фантастика #астрофото #звезда #планета #вселенная #spaceart #nasa #hubble #telescope #galaxy #космос #астрономия


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Grazie a @fabaldi_ per aver condiviso la Sua foto con noi!

Se vuoi vedere pubblicata la Tua foto, segui e tagga le nostre pagine!! 🎉
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🌌
ESO’s Very Large Telescope has captured the first confirmed image of a planet caught in the act of forming in the dusty disc surrounding a young star.
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The young planet is carving a path through the primordial disc of gas and dust around the very young star PDS 70.
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The planet stands clearly out, visible as a bright point to the right of the centre of the image, which is blacked out by the coronagraph mask used to block the blinding light of the central star.⠀
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Featured Photo 🤘🌌
Photographer 📸: @esoastronomy
Location📍: Planet PDS 70b
Selected By: @shot_by_tom
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Carina Nebula - first attempt at getting a nebula (collection of ionised gases).
About 6500-10000 light years away.

Located at around 9:30 pm, just above the horizon of the western sky, below the Crux constellation. About 6500-10000 light years away.
Second image is the Hubble picture of it for comparison 😊. #nasa #telescope #galaxy #nebula #solarsystem#astronomy #space #planet #universe #astrophotography#cosmos #astrophoto #moon #esa #earth #stars #science#apod #youresa #eso #sky #atmosphere #hubble#astrophysics #milkyway #cosmology #photography


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🚀Apollo 17 and its final destination captured in one photo. .
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6

• Esta imagem da Mars Reconnaissance Orbiter (MRO), adquirida em 13 de maio de 2018 durante o inverno no Pólo Sul de Marte, mostra uma calota de gelo de dióxido de carbono cobrindo a região e quando o Sol retorna na primavera, "aranhas" começam a emergir na paisagem. Mas estas não são aranhas reais.

Chamado de "terreno araneiforme", descreve os montes de radiação parecidos com aranhas que se formam quando o gelo de dióxido de carbono abaixo da superfície aquece e se libera. Este é um processo sazonal ativo não visto na Terra. Como gelo seco na Terra, o gelo de dióxido de carbono em Marte sublima enquanto aquece (muda de sólido para gás) e o gás fica preso abaixo da superfície.

Com o tempo, o gás dióxido de carbono retido se acumula em pressão e, por fim, é forte o suficiente para romper o gelo como um jato que expele poeira. O gás é liberado na atmosfera e poeira mais escura pode ser depositada ao redor do respiradouro ou transportada pelos ventos para produzir estrias. A perda do dióxido de carbono sublimado deixa para trás essas características semelhantes a aranhas gravadas na superfície.

#astronomy #astrophysics #science #space #universe #solarsystem #news #curiosity #hubble #cassini #photography


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• Nesta vista - salpicada de estrelas - do Observatório de La Silla, no norte do Chile, uma nebulosa de emissão vermelha conhecida como Loop de Barnard aparece como um semicírculo ao redor da Nebulosa de Orion. Localizada no centro da espada de Orion, na constelação de Orion, o Caçador, a Nebulosa de Orion é uma nuvem brilhante de gás ionizado que se assemelha a uma estrela quando vista sem um telescópio.

#astronomy #astrophysics #science #space #universe #solarsystem #news #curiosity #hubble #cassini #photography


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• A Running Man Nebula, também conhecida como NGC 1977, lembra vagamente um "fantasma espacial" colorido correndo pelas estrelas da constelação de Orion.

Localizada a 1.600 anos-luz da Terra, esta nuvem de poeira e gás interestelar compartilha sua vizinhança cósmica com duas nebulosas menores, NGC 1973 e NGC 1975. Juntas, esses três objetos formam um complexo de nebulosas de reflexo azul misturadas com nebulosas de emissão vermelhas divididas por pistas escuras de poeira.

Para ver o Running Man, olhe atentamente para o centro da imagem, onde regiões escuras com emissão vermelha fraca de átomos de hidrogênio gravam vagamente a forma de um "X" dentro da nuvem azul. Aquele "X" forma os braços e pernas do homem correndo. A cabeça do velocista pode ser um pouco mais difícil de encontrar; o fraco e redondo recurso está localizado na região azul logo acima dos braços do corredor.

Esta incrível imagem foi captada pelo astrofotógrafo Miguel Claro, do Observatório Cumeada, sede da Reserva Dark Sky Alqueva em Portugal.

#astronomy #astrophysics #science #space #universe #solarsystem #news #curiosity #hubble #cassini #photography


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• Esta nova imagem composta mostra a região ao redor dos Pilares da Criação, que estão a cerca de 5.700 anos-luz da Terra. A imagem combina dados de raios-X do Observatório de Raios-X Chandra e dados ópticos do Telescópio Espacial Hubble. A imagem óptica, tirada com filtros para enfatizar o gás interestelar e a poeira, mostra a nebulosa marrom empoeirada imersa em uma névoa azul-verde e algumas estrelas que aparecem como pontos cor-de-rosa na imagem. Nesta imagem, os raios X de baixa, média e alta energia detectados pelo Chandra foram coloridos em vermelho, verde e azul.

Usando Chandra, os pesquisadores detectaram mais de 1.700 fontes individuais de raios-X na Nebulosa da Águia (apenas uma fração é vista neste pequeno campo de visão). Identificações ópticos e em infravermelho com estrelas foram usadas para classificar e descartar intrusos casuais em primeiro ou segundo plano, e para determinar que mais de dois terços das fontes são estrelas jovens prováveis ​​que são membros do aglomerado NGC 6611.

A capacidade única do Chandra de resolver e localizar as fontes de raios X tornou possível identificar centenas de estrelas muito jovens e aquelas ainda em processo de formação (conhecidas como "proto-estrelas"). Observações infravermelhas do Telescópio Espacial Spitzer indicam que 219 das fontes de raios-X da Nebulosa da Águia são estrelas jovens cercadas por discos de poeira e gás e 964 são estrelas jovens sem esses discos.

Combinados com as observações do Chandra, os dados mostram que a atividade de raios X em estrelas jovens com discos é, em média, algumas vezes menos intensa que em estrelas jovens sem discos. Este comportamento é provavelmente devido à interação do disco com o campo magnético da estrela hospedeira. Grande parte da matéria nos discos em torno dessas proto-estrelas será eventualmente levada pela radiação de suas estrelas hospedeiras, mas, em certos casos, algumas delas podem se formar em planetas.

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• Este lindo aglomerado jovem e brilhante de estrelas lembra uma explosão aérea e está cercado por nuvens de gás interestelar e poeira. A nebulosa, localizada a 20.000 anos-luz de distância, na constelação de Carina, contém um aglomerado central de estrelas enormes e quentes, chamada NGC 3603.

Aparecendo colorido esse ambiente é tudo menos isso. A radiação ultravioleta e os ventos estelares violentos "explodiram" em uma enorme cavidade de gás e poeira que envolve o aglomerado. A maioria das estrelas no aglomerado nasceram na mesma época, mas diferem em tamanho, massa, temperatura e cor. O curso da vida de uma estrela é determinado pela sua massa, portanto, um grupo de uma determinada idade conterá estrelas em vários estágios de suas vidas, dando uma oportunidade para análises detalhadas dos ciclos de vida estelares. A NGC 3603 também contém algumas das estrelas mais massivas conhecidas. Essas grandes estrelas vivem rápido e morrem jovens, queimando rapidamente seu combustível de hidrogênio e acabando com suas vidas em explosões de supernovas.

Aglomerados estelares como a NGC 3603 fornecem pistas importantes para a compreensão da origem da formação maciça de estrelas no universo distante e primitivo. Os astrônomos também usam aglomerados enormes para estudar explosões estelares distantes que ocorrem quando as galáxias colidem, provocando uma onda de formação de estrelas. A proximidade da NGC 3603 faz dela um excelente laboratório para estudar eventos tão distantes e importantes.

Esta imagem do Telescópio Espacial Hubble foi capturada em agosto de 2009 e dezembro de 2009 com a Wide Field Camera 3 em luz visível e infravermelho.
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MODELOS DE HABITAÇÃO EM MARTE
O escritório Foster + Partners apresentou com detalhes sua visão da vida em Marte e na Lua durante o Goodwood Festival of Speed 2018. Fazendo parte do evento Laboratório do Futuro, a proposta foi apresentada através de uma série de modelos, dispositivos robóticos e desenhos futuristas que exploram a vida no espaço.
O projeto apresenta planos para um assentamento residencial em Marte construído por uma série de robôs semi-autônomos antes da eventual chegada dos astronautas. O design do habitat – realizado em colaboração com parceiros industriais e acadêmicos – prevê uma habitação impressa em 3D para até quatro astronautas construído usando regolito – o solo solto e rochas encontradas na superfície de Marte.
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• O primeiro plano dessa imagem está repleto de estrelas próximas com suas listras de difração reluzentes. Um olho aguçado também pode detectar algumas outras galáxias que, embora disfarçadas de estrelas à primeira vista, revelam sua verdadeira natureza em uma "olhada" mais próxima.

A galáxia central com listras coloridas, IC 4870, foi descoberta por DeLisle Stewart em 1900 e está localizada a aproximadamente 28 milhões de anos-luz de distância. Ele contém um núcleo galático ativo: uma região central extremamente luminosa que pode ofuscar o restante da galáxia. As galáxias ativas emitem radiação em todo o espectro eletromagnético completo, desde as ondas de rádio até os raios gama, produzidos pela ação de um buraco negro supermassivo central que devora o material se aproximando demais dele. O IC 4870 é também uma galáxia Seyfert, um tipo particular de galáxia ativa com linhas de emissão características.

O IC 4870 foi fotografado pelo Hubble para vários estudos de galáxias ativas próximas. Usando o Hubble para explorar as estruturas de pequena escala de núcleos ativos em galáxias próximas, os astrônomos podem observar os traços de colisões e fusões, barras galácticas centrais, explosões nucleares, jatos ou vazões, e outras interações entre um núcleo galáctico e seu ambiente circundante. Imagens como essa podem ajudar os astrônomos a entender mais sobre a verdadeira natureza das galáxias que vemos em todo o cosmos.

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• Este rico e denso conjunto de estrelas é um enorme aglomerado globular, uma coleção gravitacional de estrelas que orbita a Via Láctea. Os aglomerados globulares são mais densos e mais esféricos do que os aglomerados estelares abertos, como as famosas Plêiades. Eles normalmente contêm centenas de milhares de estrelas que se acredita terem se formado mais ou menos na mesma época.

Estudos têm mostrado que esse aglomerado globular, chamado NGC 6139, é o lar de uma população envelhecida de estrelas. Estima-se que a maioria dos aglomerados globulares que orbitam a Via Láctea tem mais de 10 bilhões de anos; como resultado, eles contêm algumas das estrelas mais antigas da nossa galáxia, formadas muito cedo na história da galáxia. No entanto, seu papel na evolução galática ainda é uma questão de estudo.

Este aglomerado é visto mais ou menos na direção do centro da Via Láctea, na constelação de Escorpião. Esta constelação é uma mina de ouro de objetos astronômicos fascinantes. O Hubble tem observado Escorpião muitas vezes para observar objetos como a Nebulosa da Borboleta, surpreendentes sistemas estelares binários e outros deslumbrantes aglomerados globulares.

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Portrait of NGC 281
Look through the cosmic cloud cataloged as NGC 281 and it's almost easy to miss stars of open cluster IC 1590. But, formed within the nebula, that cluster's young, massive stars ultimately power the pervasive nebular glow. The eye-catching shapes looming in this portrait of NGC 281 are sculpted columns and dense dust globules seen in silhouette, eroded by intense, energetic winds and radiation from the hot cluster stars. If they survive long enough, the dusty structures could also be sites of future star formation. Playfully called the Pacman Nebula because of its overall shape, NGC 281 is about 10,000 light-years away in the constellation Cassiopeia. This composite image was made through narrow-band filters, but combines emission from the nebula's hydrogen, sulfur, and oxygen atoms in a visible spectrum palette. It spans over 80 light-years at the estimated distance of NGC 281.

Image Credit & Copyright: J-P Metsävainio (Astro Anarchy)


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Symbiotic R Aquarii
You can see it change in brightness with just binoculars over the course of a year. Variable star R Aquarii is actually an interacting binary star system, two stars that seem to have a close, symbiotic relationship. About 710 light years away, this intriguing system consists of a cool red giant star and hot, dense white dwarf star in mutual orbit around their common center of mass. The binary system's visible light is dominated by the red giant, itself a Mira-type long period variable star. But material in the cool giant star's extended envelope is pulled by gravity onto the surface of the smaller, denser white dwarf, eventually triggering a thermonuclear explosion and blasting material into space. The featured image from the Hubble Space Telescope shows the still-expanding ring of debris which spans less than a light year and originated from a blast that would have been seen in the early 1770s. The evolution of less understood energetic events producing high energy emission in the R Aquarii system has been monitored since 2000 using Chandra X-ray Observatory data.

Image Credit: Hubble, NASA, ESA; Processing & License: Judy Schmidt


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The Extraordinary Spiral in LL Pegasi
What created the strange spiral structure on the upper left? No one is sure, although it is likely related to a star in a binary star system entering the planetary nebula phase, when its outer atmosphere is ejected. The huge spiral spans about a third of a light year across and, winding four or five complete turns, has a regularity that is without precedent. Given the expansion rate of the spiral gas, a new layer must appear about every 800 years, a close match to the time it takes for the two stars to orbit each other. The star system that created it is most commonly known as LL Pegasi, but also AFGL 3068. The unusual structure itself has been cataloged as IRAS 23166+1655. The featured image was taken in near-infrared light by the Hubble Space Telescope. Why the spiral glows is itself a mystery, with a leading hypothesis being illumination by light reflected from nearby stars.

Image Credit: NASA, ESA, Hubble, HLA; Processing & Copyright: Domingo Pestana & Raul Villaverde


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Still Life with NGC 2170
In this beautiful celestial still life composed with a cosmic brush, dusty nebula NGC 2170 shines at the upper left. Reflecting the light of nearby hot stars, NGC 2170 is joined by other bluish reflection nebulae, a compact red emission region, and streamers of obscuring dust against a backdrop of stars. Like the common household items still life painters often choose for their subjects, the clouds of gas, dust, and hot stars pictured here are also commonly found in this setting - a massive, star-forming molecular cloud in the constellation Monoceros. The giant molecular cloud, Mon R2, is impressively close, estimated to be only 2,400 light-years or so away. At that distance, this canvas would be about 15 light-years across.

Image Credit & Copyright: Adam Block, Mt. Lemmon SkyCenter, U. Arizona


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