The night sky appears perfectly still, but the universe is constantly changing in ways the human eye cannot see. By combining ...
Fly about 2,600 light-years to Hubble Space Telescope imagery of the Cygnus loop nebula. See images from 2001 and 2020.
The VLA is a legitimately amazing thing to see in person. If you've ever considered making a visit, you should. It's an awe-inspiring feat of human engineering, and the surroundings are gorgeous.