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Items tagged with: astrophysics


The conclusion of a century-long quest 😲

Our VLT obtained firm evidence that Betelgeuse, a red supergiant star in the Orion constellation and one of the most famous stars in the night sky, is not alone!

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📷 ESO/M. Montargès et al. Background: N. Rissinger (skysurvey.org)

#astrodon #astronomy #astrophysics #space #science

A collage of various astronomical images. The background image shows a wide view of a starry night sky, with blue lines connecting the stars of the Orion constellation. An inset image zooms into the star Betelgeuse, showing its orange surface. A second inset shows a bright companion next to the star.


That's no moon. It's a...hang on, what should we call it? 🤔

Our VLT has revealed evidence for a moon-like object in the CD-35 2722 system. Yet this new ‘exomoon’ detection is challenging cosmic labels!

Illustration: ESO/M. Kornmesser

#astrodon #astronomy #astrophysics #space #science

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The artist's impression features a small star (left) and two gaseous planets covered in clouds (centre and right), set against the blackness of space.


🚨 Beyond the limit 🚨

New ESO study finds that current proposals to launch 1.7+ million satellites into orbit would have devastating consequences for astronomy.

The most extreme proposals come from SpaceX & Reflect Orbital

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📷 F. Kamphues, ESO/M. Kornmesser

#astrodon #astronomy #astrophysics #space #science #environment #pollution

The background of this image shows a starry sky, including the bright lane of the Milky Way. Hundreds of bright streaks cross the sky in different directions, as if scratching the background natural sky behind it. The bottom of the image is occupied by the dark silhouette of a mountainous desert landscape. Atop the mountain at the centre, is a small, distant metallic dome and yellow-orange lasers shine behind it.


"I was completely overwhelmed by the beauty of it all, to the point of forgetting everything around me! A sky of absolute purity, free from artificial light.”

This is how astrophotographer Julien Looten remembers the night he captured this extraordinary view of our VLT at Cerro Paranal, #Chile

Wondering what all those cosmic objects and phenomena in the image are?
Find out: https://www.eso.org/public/images/potw2602a/

📷 J. Looten /ESO

#astrodon #astronomy #astrophotography #astrophysics #space #science

A 360-degree panorama during the night. On the left, one smaller dome and four larger ones are visible on the ground. From the right-hand large dome, two yellow lights are emerging from it. In behind the four buildings on the left side is a faint white glow visible. To the right side of the image, another runway is displayed. At the horizon, a green and red glow around can be seen. Over this area, Milky Way is spanned.


A very hungry planet! 🪐

That little dot is WISPIT 2b, a newborn exoplanet. About 5 times the mass of Jupiter, the planet is eating its way through its dusty cradle as it orbits the host star, a younger version of our Sun 🌞

Taken with ESO’s Very Large Telescope (VLT) in #Chile, this image is the first clear detection of a baby planet in a disc with multiple rings.

Read more: https://www.eso.org/public/images/potw2534a/

📷 ESO/R. F. van Capelleveen et al.

#astrodon #astronomy #astrophysics #space #science

A white protoplanetary disc at the centre of the picture takes up most of the frame. The elliptical cloud of dust and gas consists of several concentric rings and gaps. In one of the larger gaps there is a little dot: a planet.


As the Milky Way band appears to pour into our Extremely Large Telescope in #Chile, the cranes around it seem to do the same while they further advance the telescope.

Once complete, the ELT will be breaking down the light above in unparalleled detail with its huge 39 m mirror.

More: https://www.eso.org/public/images/potw2533a/

📷 C. Letelier/ESO

#astrodon #astronomy #astrophysics #astrophotography #space #science

The image shows the open metallic dome of the Extremely Large Telescope (ELT) at the centre of the picture taking up the lower half of the frame. At the top, like a river the Milky Way band horizontally pours into the ELT. The construction site of the ELT is surrounded by cranes, while the Milky Way lights up the sky in various colours. One patch of the Milky Way shines the brightest, the centre of the galaxy.


Sailing beneath a sea of stars!

Feast your eyes on this stunning image of our Extremely Large Telescope (ELT) underneath a gorgeous starry night sky in #Chile. It almost looks like a ship cresting a great, shadowy wave. ⛵️🌊

Read more: https://www.eso.org/public/images/potw2530a/

📷 P. Romaniuk/ESO

#astrodon #astronomy #astrophysics #space #science

The bottom fourth of the image is taken up by the black shadow of Chile’s Atacama Desert, appearing as a wave with a peak near the left-hand side. Almost at the very peak of the shadow is a grey dome appearing as a white light. Above, is a vast sea of white specks, stars amongst a gradient of orange, blue and bright pinks and purples. The branching Milky Way extends from the centre of the image to the top right.


💥💥 Double detonation!

For the first time, astronomers have obtained visual evidence that a star met its end by blasting twice.

This was done by studying the centuries-old remains of supernova SNR 0509-67.5 with our Very Large Telescope. Led by the Univ. of South Wales, this shows some of the most important explosions in the Universe in a new light.

What happened exactly? Keep reading.

#astrodon #astronomy #astrophysics #space #science

📷 ESO/P. Das et al. Backgr. stars (HST): K. Noll et al.

A cosmic bubble against a starry background. The outer layer of the bubble is orange, and it surrounds an inner blue layer.