ESA@europeanspaceagency

The European Space Agency - #ESA 🚀👨‍🚀
Bringing the wonders of the universe and our planet to the palm of your hands 🔭🛰
🌍 @esa_earth
🌌 @youresa
More👇

www.esa.int/

1,932 posts 626,575 followers 57 following

ESA

Hubble Time! 🌌⠀⠀⠀
⠀⠀⠀
In the northern constellation of Coma Berenices (Berenice's Hair) lies the impressive Coma Cluster — a structure of over a thousand galaxies bound together by gravity. Many of these galaxies are elliptical types, as is the brighter of the two galaxies dominating this image: NGC 4860 (centre). However, the outskirts of the cluster also host younger spiral galaxies that proudly display their swirling arms.
⠀⠀⠀
Go to out @instagram Story to learn more.⠀⠀⠀
⠀⠀⠀
📸 @europeanspaceagency/Hubble & @NASA, @creativecommons CC BY 4.0


20

ESA

Did you feel that⁉️

Our star mapping mission, Gaia, has shown our Milky Way galaxy is still enduring the effects of a near collision that set millions of stars moving like ripples on a pond.

The close encounter likely took place sometime in the past 300–900 million years. It was discovered because of the pattern of movement it has given to stars in the Milky Way disc – one of the major components of our Galaxy.

Go to our @instagram Story to learn more.

🖥 @europeanspaceagency / @creativecommons CC BY-SA 3.0 IGO


92

ESA

The winner of @graffitiwithoutgravity street art competition, @shanesutton_art, has left a permanent mark on our technical heart, with this mural on the wall next to the Compact Antenna Test Range.

It took Shane two and a half days to finish. The mural shows an astronaut in contact with our @rosettamission like someone holding a puppet on string, representing the use of antennas – essential to link space missions with their homeworld. Its background shows the ‘anechoic’ foam spikes that line the walls of the CATR, serving to absorb radio signals and reproduce the boundless void of space. •
📹 @europeanspaceagency


38

ESA

Look at this sky full of stars, some are even down on Earth! 🤩

Meet the DC14 crew on the staircase of Concordia research station in Antarctica.

Located on a plateau 3200 m above sea level, Concordia is in a place of extremes, temperatures can drop to –80°C in the winter, with a yearly average temperature of –50°C.

As Concordia lies at the very southern tip of Earth, the Sun does not rise above the horizon in the winter and does not set in the summer. The crew must live without sunlight for four months of the year.
• 📸 @europeanspaceagency/IPEV/PNRA – M. Buttu


80

ESA

It's time for the #ESAquiz! 🛰⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀
Do you know what are these technicians working on?⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀
Write your answers in the comment section 👇 and stay tuned to our @instagram Story for the answer and a shout out!⠀⠀⠀⠀
⠀⠀⠀⠀
📸 @europeanspaceagency – A. Conigli


110

ESA

Hubble unveils the beauty of our universe yet once again.

The NASA/ESA Hubble Space Telescope has started a new mission to shed light on the evolution of the earliest galaxies in the Universe. The BUFFALO survey will observe six massive galaxy clusters and their surroundings. The first observations show the galaxy cluster Abell 370 and a host of magnified, gravitationally lensed galaxies around it.

Go to our @instagram Story to learn more.

📸 1️⃣ @NASA, @europeanspaceagency, A. Koekemoer, M. Jauzac, C. Steinhardt, and the BUFFALO team, @creativecommons CC BY 4.0
2️⃣ NASA, ESA/Hubble, HST Frontier Fields, @creativecommons CC BY 4.0


56

ESA

This is work for TGO 🔍

The image shows an unusual terrain type – sometimes referred to as chaotic blocks – on Mars, but what is particularly striking are the large number of dark streaks.
One possible interpretation is that these features were produced during the recent global dust storm: they could have resulted from dust devils stirring up the surface dust.

Go to our @instagram Story to learn more. •
📸 @europeanspaceagency / @roscosmosofficial / @unibe_cassis, @creativecommons CC BY-SA 3.0 IGO


32

ESA

Did you know there were tectonic forces in Mars? ⠀

These prominent trenches, captured by Mars Express, were formed by faults that pulled the planet’s surface apart less than 10 million years ago.
They cut through impact craters and hills along the way, as well as 10 million year old volcanic plains, indicating the relative youth of their formation.

Go to our @instagram Story to learn more.

📸 @europeanspaceagency/ @germanaerospacecenter/ @fu_berlin (G. Neukum); @creativecommons CC BY-SA 3.0 IGO


83

ESA

- Wouldn't be cool to have a mobile observatory? 🔭
- Challenge accepted! 🚗

The Nissan Navara ‘Dark Sky’ concept vehicle features a custom-made off-road trailer carrying a high-power observatory-class PlaneWave telescope. The trailer has been developed to include ‘Intelligent Mobility’ technologies, allowing the telescope to be safely transported to remote ‘dark-sky’ locations.

Go to our @instagram Story to learn more. •
📸 @nissan


121

ESA

The second leg of Pangaea is done! ✔️ •
Week two of the 2018 course took place in the Italian Dolomites. Led by European geologists, this year’s participants our astronaut Thomas Reiter, @roscosmosofficial cosmonaut Sergei Kud-Sverchkov and our science expert lead Aidan Cowley studied geological processes, how to read rock formations and tools available to researchers before moving out into the field to put their knowledge into practice.

Go to our @instagram Story to learn more. •
📸 @europeanspaceagency – A. Romeo


20

ESA

Hello from Mars! 🔴👋 •
The #ExoMars orbiter sends this image showing the south-facing rim of a pit crater at 68°S in the Sisyphi Planum region of Mars. It is a colour composite made from images acquired on 2 September 2018 when the southern hemisphere of Mars was in late spring.

Most striking are the bright residual carbon dioxide ice deposits on south-facing slopes of the crater. In colder months carbon dioxide and some water vapour freezes on the surface. Then, as the Sun gets higher in the sky again, the ice sublimates away, revealing the underlying surface.

Go to our @instagram Story to learn more. •
📸 @europeanspaceagency / @roscosmosofficial / @unibe_cassis, @creativecommons CC BY-SA 3.0 IGO


79

ESA

Hubble Time! 🌌⠀⠀⠀
⠀⠀⠀
This image was taken with the NASA/ESA Hubble Space Telescope’s Wide Field Camera 3 (WFC3) and shows an object named SDSS J1138+2754. It acts as a gravitational lens illustrates the true strength of gravity: A large mass — a galaxy cluster in this case — is creating such a strong gravitational field that it is bending the very fabric of its surroundings. This causes the billion-year-old light from galaxies sitting behind it to travel along distorted, curved paths, transforming the familiar shapes of spirals and ellipticals (visible in other parts of the image) into long, smudged arcs and scattered dashes.
⠀⠀⠀
Go to out @instagram Story to learn more.⠀⠀⠀
⠀⠀⠀
📸 @europeanspaceagency/Hubble & @NASA, @creativecommons CC BY 4.0; Acknowledgement: Judy Schmidt


37