Because these cosmic signals are inconceivably small, preserving every single photon is crucial. To accomplish this, LIGO ...

Foale — a distinguished veteran of six space missions who retired in 2013 — takes us back to that day of May 25, 1997, when a ...

The trio's Soyuz spacecraft will undock from the ISS at 3:02 a.m. ET on Sunday (July 26) and land on Earth about 3.5 hours later. A U.S.-Russian crew will return to Earth from the International Space ...

Scientists have measured temperatures beneath the surface of Jupiter's volcanic moon Io, offering the first-ever glimpse of ...

This test is critical as Plato will need to be able to collect data and run its instruments without interference from ...

"The origin of these 'bullets' is a mystery." When you purchase through links on our site, we may earn an affiliate ...

While there are no hummingbirds flying around Antarctica, we can see what looks like a small, purple bird in a new satellite ...

Night Sky This Week. Discover this week's must-see night sky events, moon phases, and stunning astrophotos. Sign up for our ...

Scientists can pore over these spectral fingerprints to reconstruct what elements created them and in what quantities.

Tune in today, July 24, at 1:30 p.m. ET for a LIVE This Week In Space taping to mark the 50th anniversary of the Viking ...

"We have to do what we can to ensure that the country makes it through the challenges that we're dealing with here, and that ...

The MRV-MEP mission is designed to extend the operational lives of multiple satellites in geostationary orbit.