SpaceX and other companies plan to launch tens of thousands of satellites, which could mar astronomical observations and pollute the atmosphere.

Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...

American astronomy thrives today largely because of the underpinnings achieved by John Quincy Adams in his far-reaching ...

The Solar System continues to surprise us day after day and its presence in terms of dominance and expansion goes far beyond what we thought. And indeed, a long way from Neptune an ...

Head out and find some bright planets in the evening this week: Mars, Jupiter, and Venus are all visible right now. Here's ...

When we observe distant celestial objects, there is a possible catch: Is that star I am observing really as reddish as it ...

What is …?” is a section-wide column that explores the STEM majors at UW and explains what they are. This week, c William ...

Starting late on March 13 and continuing into the early-morning hours of March 14, our natural satellite will pass through ...

Trained on the spectacular Flame Nebula, the Hubble and James Webb Space Telescopes went hunting for the smallest stars in ...

Greek astronomer Dimitrios Psaltis was instrumental in the gigantic effort to take mankind's first-ever image of a black hole ...

After their flight was scrubbed on Wednesday, four astronauts successfully lifted off, which will allow two NASA astronauts to return to Earth after an unexpected extended stay in orbit. By ...