The CRIRES+ instrument on the European Southern Observatory’s Very Large Telescope (ESO’s VLT) has been used to measure the ...

The detection of 3I/ATLAS marks our solar system’s third time saying aloha to an interstellar visitor, following the ...

Astronomers manning an asteroid warning system caught a glimpse of a large, bright object zipping through the solar system ...

Solar systems mostly keep to themselves. What’s ours is ours and what’s not is not. Stars are simply too far from each ...

This unprecedented view of the Bullet Cluster provided by the James Webb Space Telescope and the Chandra X-ray Observatory ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...