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The heat is on 🔥! Our Solar Dynamics Observatory satellite captured a relatively small - see the Earth inset for scale - prominence hovering over the Sun’s surface on June 12-14 before breaking off into space. Prominences are clouds of solar material suspended above the Sun’s surface by the solar magnetic field – the same complex magnetism that drives solar events like flares and coronal mass ejections. The solar material in the prominence streams along the Sun’s magnetic field lines before it thins out and gradually breaks away from the solar surface.
Credit: NASA/SDO

#nasa #space #sun #solar #sdo #light #earth #solarsystem #science #video #ultraviolet #uv #uvlight #picoftheday


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Swirling cloud belts and tumultuous vortices within Jupiter’s northern hemisphere are seen in this view from a May flyby of the planet's cloud tops by our Juno spacecraft. Looking closer at this chaotic and turbulent world, we see darker cloud material that is deeper in Jupiter’s atmosphere, while bright cloud material is higher. The bright clouds are most likely ammonia or ammonia and water, mixed with a sprinkling of unknown chemical ingredients.

A bright oval at bottom center stands out in the scene. This feature appears uniformly white in ground-based telescope observations. However, with Juno, we can observe the fine-scale structure within this weather system, including additional structures within it. There is not significant motion apparent in the interior of this feature; like the Great Red Spot, its winds probably slows down greatly toward the center.

Since 2016 Juno has been penetrating Jupiter’s deep, colorful zones and belts in a quest to answer fundamental questions about the gas giant planet's origin and evolution.

Image Credits: NASA/JPL-Caltech/SwRI/MSSS/Gerald Eichstädt /Seán Doran
#nasa #space #juno #jupiter #gasgiant #planet #clouds #swirling #pattern #solarsystem #science #spacecraft #pictureoftheday #astronomy #jetstream #jet #stream


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It’s National Selfie Day! 📸Located 250 miles above Earth, the International Space Station (@ISS) provides a unique perspective for astronauts to take selfies like this photo astronaut Ricky Arnold (@Astro_Ricky) captured last week while working in the vacuum of space during a spacewalk.
Along with astronaut Drew Feustel, the duo completed the sixth spacewalk at the space station in 2018, lasting 6 hours, 49 minutes. The two astronauts installed new high-definition cameras that will provide enhanced views during the final phase of approach and docking of the SpaceX Crew Dragon and Boeing Starliner commercial crew spacecraft that will soon begin launching from American soil. The spacewalk was the 211th in support of assembly and maintenance of the unique orbiting laboratory where humans have been living and working continuously for nearly 18 years. Spacewalkers have now spent a total of 54 days, 23 hours and 29 minutes working outside the station.

Image credit: NASA/Ricky Arnold
#nationalselfieday #selfie #nasa #astronaut #spacewalk #space #earth #orbit #spacestation #spacesuit #work #white #blue #picoftheday #pictureoftheday


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Once in a blue dune… On the floor of the Lyot Crater on Mars lies a field of dunes. One particular dune, seen in this January view from our Mars Reconnaissance Orbiter, appears turquoise blue in enhanced color and is made of a different composition than the surrounding dune field.
This image was taken with the HiRISE (High Resolution Imaging Science Experiment) camera that is the most powerful camera ever sent to another planet and is one of six instruments onboard the orbiter. Since arriving at Mars in 2006, the camera’s high resolution capability (imaging up to 30 centimeters per pixel) remains unprecedented for the study of the Red Planet, as well as being an indispensable instrument for helping to select landing sites for robotic and future human exploration. In the past decade, it has imaged avalanches in progress, and discovered dark flows that may or may not be briny seeps. Hundreds of science papers have been published with data from the HiRISE camera data.
Image Credit: NASA/JPL-Caltech/Univ. of Arizona
#nasa #space #science #mars #crater #dune #solarsystem #redplanet #picoftheday #astronomy #mro #hirise #blue #pictureoftheday


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🌊🌊🌊 This natural-color image captured May 17 near the coast of Guinea-Bissau in West Africa show estuaries branching out like a network of roots from a plant. With their long tendrils, the rivers meander through the country’s lowland plains to join the Atlantic Ocean. On the way, they carry water, nutrients, but also sediments out from the land.

These estuaries play an important role in agriculture for this small country that is mostly made up of flat terrain. While the coastal valleys can flood often during the rainiest part of the year in the summer, the rain makes the valleys good locations for farming, especially rice cultivation. Using satellite data, researchers continue to observe the country's change in terrain and as a result, they're documenting a regrowth of previously eroded coastal areas.

Credit: NASA/Joshua Stevens/@USGS

#nasa #earth #science #water #picoftheday #earthview #views #agriculture #westafrica #atlanticocean


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The most recent flight of our SOFIA flying observatory brought the team so far south that they spotted the southern lights, also known as Aurora Australis. The Milky Way and Mars are also visible in this image taken at 43,000 feet.
The SOFIA telescope (@SOFIAtelescope) uses an outfitted Boeing 747SP jetliner that’s been modified to carry a 106-inch diameter telescope, and uses infrared light to study celestial objects best viewed from the Southern Hemisphere. The latest flight was aimed at studying the center of the Milky Way and the Tarantula Nebula.
Creating images of the celestial magnetic fields found in the center of our Milky Way galaxy will help scientists better understand the shape and strength of these fields and gain new insights into how they impact the processes in the our galactic center.
Mapping the Tarantula Nebula, which has a cluster of thousands of stars forming at once, will help researchers determine the speed and direction of the molecules in the nebula to determine if the material is expanding, forming new stars or if the star formation process has been stunted.

Credit: NASA

#NASA #space #nebula #SOFIA #747 #BlackHoles #galaxies #stars #supernova #MilkyWay #TarantulaNebula #AuroraAustralis #SouthernHemisphere #South #SouthernLights #aurora #science #mars #universe #Boeing747


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This beautiful image of the Jupiter’s chaotic jets and vortices was captured by our Juno spacecraft (@NASAJuno) as it performed its 13th close flyby. At the time, the spacecraft was about 4,900 miles (7,900 kilometers) from the tops of the clouds of the gas giant planet. The view is oriented with south on Jupiter toward upper left and north toward lower right.
Since 2016 Juno has been penetrating Jupiter’s deep, colorful zones and belts in a quest to answer fundamental questions about the gas giant planet's origin and evolution.

Image Credits: NASA/JPL-Caltech/SwRI/MSSS/Kevin M. Gill

#nasa #space #juno #jupiter #gasgiant #planet #clouds #swirling #pattern #solarsystem #science #spacecraft #pictureoftheday #astronomy #jetstream #jet #stream


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How would you go about finding the brightest, distant galaxies possible? For our Hubble Space Telescope (@NASAHubble) team, they are looking at 41 massive galaxy clusters to find the celestial objects for the upcoming Webb Space Telescope (@NASAWebb) to study. This new sparkling view shows one of the clusters of galaxies along with a few homeless stars.
The enormous gravitational influence of such clusters distorts the space around them in such a way that they can be used as giant cosmic lenses that magnify distant background galaxies. Studying some of the earliest galaxies in the universe will tell us more about our cosmic origins.

Credit: ESA/Hubble & NASA, RELICS

#nasa #space #hubble #spothubble #webb #universe #science #distant #galaxies #clusters #celestial #stars #cosmic #origins #exploration


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Bang and whoosh! When a meteoroid hit the surface of Mars and exploded to make this crater, it also destabilized the slope and initiated the avalanche seen here by our Mars Reconnaissance Orbiter. While the crater itself is only five meters across, the slope streak it started is one kilometer long!

Credit: NASA/JPL-Caltech/Univ. of Arizona

#nasa #space #science #mars #crater #avalanche #solarsystem #redplanet #picoftheday


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Just another day at the office – in space! 🌏Today, @Astro_Ricky & @Astro_Feustel completed a spacewalk that lasted 6 hours, 49 minutes to install new high-definition cameras that will provide enhanced views of spacecraft docking with the International Space Station (@ISS). To enable the enhanced views, the two spacewalkers installed brackets and the cameras near an international docking adapter connected to the front end of the space station’s Harmony module. They also routed the ethernet and power cables to connect the cameras to the station. The booms holding the cameras also expand the wireless network at the orbiting laboratory.

This marks the 211th spacewalk in support of assembly and maintenance of the unique orbiting laboratory where humans have been living and working continuously for nearly 18 years. Spacewalkers have now spent a total of 54 days, 23 hours and 29 minutes working outside the station.

Credit: Roscosmos/Oleg Artemyev (@olegmks)

#nasa #spacewalk #astronaut #views #earth #space #spacestation #science #solarsystem #picoftheday #orbit #liftoff #launch #crew #spacecraft


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Mars is infamous for intense dust storms. Right now, a massive Martian dust storm is affecting operations of our Opportunity rover. This storm is already one of the most intense ever observed on the Red Planet. The storm, which was first detected by our Mars Reconnaissance Orbiter on May 30, has grown to cover more than 15.8 million square miles (41 million square kilometers) as of June 10 – an area about the size of North America and Russia combined. It has blocked out so much sunlight, it has effectively turned day into night for Opportunity, which is located near the center of the storm, inside Mars' Perseverance Valley.

These two views from our Mars Curiosity rover, acquired specifically to measure the amount of dust inside Gale Crater, show that dust has increased over three days from a major Martian dust storm. In the first image, we see a view of the east-northeast rim of Gale Crater on June 10, 2018 (Sol 2077). Swipe to see a view of the same feature on June 7, 2018 (Sol 2074), three days earlier. The images were taken by the rover's Mastcam.

Image credit: NASA/JPL-Caltech/MSSS
#nasa #space #mars #redplanet #curiosity #rover #opportunity #marsrovers #spacecraft #planet #solarsystem #science #rocks #explore #sol #day #duststorm #marsstorm #storm #dust


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As air traffic continues to surge in the U.S., neighbors who live near airports are complaining about the escalating noise.  All the while, the demand for faster aircraft that travel at supersonic speeds is accelerating.

To address the expected noise levels of future aircraft, our Commercial Supersonic Technology project is already developing technologies focused on reducing the noise produced by an aircraft’s engine exhaust.

Acoustics experts at our Glenn Research Center (@nasaglenn) in Cleveland recently used the center’s Aero-Acoustic Propulsion Laboratory to complete an evaluation on a small-scale model of a Learjet engine exhaust, or nozzle, system.

The blue, curved array at the top of the dome held microphones for making the noise measurements and simulating a flyover. The large door to the right was opened to exhaust the air from the jet during tests.

Image Credit: NASA/ Rami Daud, Alcyon Technical Services
#aeronautics #picoftheday #nasa #supersonicflight #technology #research #avgeek #acoustic #sound #quiet #aero #aviationphotography #aviation #test #testing


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