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#space

71 posts48 participants3 posts today
Public
ESO

The laser beams of our Very Large Telescope pierce the star-filled sky of the Atacama Desert in #Chile

The lasers create artificial "stars" in the atmosphere, about 90 km above the ground, which then act as guides. By studying how they are blurred by the atmosphere, the telescope's deformable secondary mirror quickly reshapes itself in real time, yielding very sharp images. It’s almost as good as sending the VLT up into space!

Learn more: eso.org/public/images/potw2516

📷 ESO/A. de Burgos Sierra

A large telescope stands in the centre of the image, against a backdrop of thousands of stars above a desert landscape. The Milky Way galaxy is visible behind the telescope, and the sky itself glows slightly green towards the horizon. From the very centre of the telescope, four bright orange laser beams are projected ahead into the night sky.
#astrodon#astronomy#astrophysics
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Or M. Bialik

Nope, looking side-by-side photos of the same object from the Hubble and the James Webb #space telescopes will never stop being cool. Take this photo of Messier 104 ("The Sombrero Galaxy") - amazing in both optics. 🧪

Photos of photo of Messier 104 ("The Sombrero Galaxy") from Hubble (top) and James Webb (bottom)
Public
Astro Hawk (Ian Kluft) 🚀🛰️

"NASA's oldest active astronaut lands with space station crewmates on his 70th birthday" by @Spacecom - Oregon-native astronaut Don Pettit returned from a 7-month crew rotation on #ISS with the Russian Soyuz capsule & crewmates he launched with. Safe landing in Kazakhstan. Then big birthday celebration.🎉 space.com/space-exploration/in #NASA #space

Space · NASA's oldest active astronaut lands with space station crewmates on his 70th birthdayBy Robert Z. Pearlman
Continued thread
Public
Astro Hawk (Ian Kluft) 🚀🛰️

An interesting effect of the concept of a rotating universe immediately comes to mind... With enough data on rotational velocities of celestial objects, it should be possible to eventually (maybe still years or decades away) roughly compute a point everything is rotating around. Curious to learn where that is and what's there. #space #astronomy #physics #science

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Dr. John Barentine FRAS

"[Space] debris presents ... a complex issue for satellite operators trying to navigate these invisible threats. 'Without proper coordination, these valuable spaces will be overcrowded, making it harder to avoid collisions and creating more debris.'"

phys.org/news/2025-04-space-tr

Phys.org · Space traffic and trash: Policy experts work toward a sustainable final frontierBy Catherine Barzler
#Space#SpaceDebris#SpacePolicy
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