A bouquet of thousands of stars in bloom has arrived. This composite image contains the deepest X-ray image ever made of the ...

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 ...

Step aside, Darth Vader. National Aeronautics and Space Administration (NASA)'s Joint Extreme ultraviolet lithography (EUV) ...

Evidence suggests ancient civilizations, including the Greeks, may have had early optical knowledge and devices like ...

NASA's Jet Propulsion Laboratory has declared a 1.6% chance that a large asteroid would strike the Earth when on Dec. 22, ...

Scientists say the threat of a newly discovered asteroid has risen slightly in the past few weeks, as the world's telescopes ...

YR4 has a roughly 2 percent chance of hitting Earth in 2032, and “is large enough to cause localized damage,” NASA says.

Revolutionary technique allows astronomers to capture incredibly high-resolution images of distant galaxies and supermassive black holes.

YR4 has a 2% chance of hitting Earth in 2032. Astronomers are tracking it to refine estimates of its size and orbit to see how much of a risk the space rock poses.

Where is all the water that may form oceans on distant planets and moons? The SPHEREx astrophysics mission will search the ...

An unexpected television signal traced to an airplane led to a new method for pinpointing unwanted radio signals, as growing ...

Daichi Fujii from the Hiratsuka City Museum in Japan captured a meteor impact the moon with multiple telescopes. Credit: Daichi Fujii (Hiratsuka City Museum) | edited by Space.com's Steve Spaleta Musi ...