No-Zucchini2787
No-Zucchini2787 t1_jdqk4jb wrote
Reply to Can I look into the past? by AGARAN24
You are looking at the past when you see sky. Always. Anyone on proxima Centauri will see earth as if was 4.5 light years ago. Betelgeuse might have already exploded. We are Andromeda as it was 4.5 millions year ago. Today Someone far away can see earth as dinosaurs are roaming. Time is relative.
No-Zucchini2787 t1_jdlgn5x wrote
Reply to We can't see on the other side of the Sun. Have we ever used satellites to see the other side? by Dave-C
There is no other side. Sun and earth aren't tidally locked. Sun rotates at its axis once every 27 days. It's actually 25 for centre and 30 for axis as sun is a big ball of gas. This is very well observed with solar cycles and sun spots. Earth and Moon are tidally locked.
No-Zucchini2787 t1_jcw2ynw wrote
Reply to What is this exactly? I have seen this universe image a lot and never understood what it actually is by subatomicslim
It's zone of avoidance. This is the dense part of our galaxy including the black hole etc. Visible light in this area is adsorbed by galactic centre and dust. Not a good area for visible light photography and hubble. At the same time it's paradise for Gaia, jwst, Spitzer etc, basically any nom-visible light telescope.
No-Zucchini2787 t1_jcpxdt3 wrote
Reply to Space Talk with a curious 18 year old who has watched way too many youtube videos about random space facts. by Worth_Floor4303
You haven't even scratched the surface mate. Google drake equation. You are welcome
No-Zucchini2787 t1_jdqmri3 wrote
Reply to comment by AGARAN24 in Can I look into the past? by AGARAN24
Technically yes. That's what we are trying with jwst. Not the end of space but first galaxies and stars. Made of pure hydrogen. Right after dark ages.