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 ...

I'm the kind of person who, every so often, falls into accidental daydreams about the concept of space. Usually because I'm ...

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

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

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

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

"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 ...

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

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

"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 ...

"Whether we want to be in the combat zone or not, orbital mechanics will put all of our space capabilities into the space war ...