Giant ground-based reflector telescopes do much of astronomy's heavy lifting, although the U.S.'s largest in Hawaii is not ...
NASA astronaut Suni Williams, one of two astronauts stuck on the International Space Station, has completed her first ...
A little-known chapter of the Hubble Space Telescope’s history is a reminder of the risks of looking at the sun ...
One of NASA's two stuck astronauts got a much welcomed change of scenery Thursday, stepping out on her first spacewalk since ...
Sunita Williams embarked on her eighth spacewalk after having done her last extravehicular activity 12 years ago. With the six-hour spacewalk, Williams has extended her spacewalk time to over 56 hours ...
Sunita Williams, one of NASA 's stranded astronauts, has finally left the International Space Station after being stuck ...
How do images taken by the James Webb Space Telescope (JWST) appear so colorful, and where do the colors come from?
The European Southern Observatory's (ESO) Extremely Large Telescope (ELT) — the world's largest visible- and infrared-light ...
Image Processing: Joseph DePasquale (STScI) NASA's James Webb Space Telescope is known for looking deep into the universe with an unprecedented level precision and sensitivity. But its images aren ...