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 ...

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

"Historically, astronomy has left an indelible mark on human society and played a pivotal role in intellectual enlightenment, ...

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

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

Researchers worry an “extinction-level event” is coming for space science as the Trump administration looks to slash spending ...

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

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

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 ...

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 ...