Scientists have confirmed that colossal collisions between galaxies trigger titanic eruptions in the centers of those ...

Galaxy clusters are the most massive objects in the universe held together by gravity, containing up to several thousand ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

NASA scientists are sounding an alarm that would have been unthinkable a decade ago: the same commercial satellite ...

In the heart of a distant spiral galaxy, a cosmic storm has erupted. This event is unlike anything astronomers have seen ...

Most scientists agree the prolonged flash likely occurred when a black hole ate a star, but two other ideas can't be ruled ...

In a new study published in The Astrophysical Journal, a group of researchers from the University of Colorado Boulder ...

Astronomers have sighted the oldest known stellar explosion, dating back to when the universe was less than a billion years ...

NASA is sounding a clear alarm about the way SpaceX is reshaping low orbit, warning that the company’s satellite swarms and ...

Astronomers at the University of North Carolina at Chapel Hill have helped uncover new clues about the longest-lasting cosmic ...

This infrared view offers the clearest look yet at how dwarf galaxies merge, evolve, trade gas and ignite waves of new stars.