#Introduction Hi #fediverse ! We’re the European Southern Observatory, and we design, build and operate ground-based telescopes.
One of them is our Extremely Large Telescope, currently under construction in #Chile. It will have a 39 m mirror, and its rotating enclosure will weigh 6100 tonnes, or about 700 mastodons!
We’re looking forward to chatting with all of you about #astronomy
📷 ESO/G. Vecchia
Supernova 1994D and the Unexpected Universe
Credits: High-Z Supernova Search Team, HST, #NASA
This is a very short session with Pickering's Triangle. I was trying for 3 1/2 to 4 hours but ended up with only 2. Pickering's is part of the Veil Nebula, also known as the Cygnus Loop. It's between the Eastern and Western Veil.
NASA’s Mars Perseverance rover acquired this image of an unusual rock using its Left Mastcam-Z camera on Sept 13, 2024. Image Credit: NASA/JPL-Caltech/ASU/Thomas Thomopoulos
What a set of headlines, can't get any more dystopian than that. The rich go into vanity trips into space, while the common people down below drown.
Woohoo! First post to the Fediverse *from space* via the International Space Station!!!! (Packet sent via RF to space, then retransmitted to earth from the ISS digipeater back to earth, detected by my bot and posted to the Fediverse). Message from @wd9ewk
Why do some planets have moons and others don’t?
Moons are either gravitationally captured if they are within what’s called a planet’s Hill sphere radius, or they’re formed along with a solar system. 🌙
Did you know: Earth's moon formed from a collision with a Mars-sized object.
