A fleet of NASA missions has likely uncovered a collision between two ultradense stars in a tiny galaxy buried in a huge stream of gas. Astronomers have never seen this type of explosive event in an ...

Astronomers have spotted a colossal explosion coming from a pair of merging neutron stars lurking within the remnants of an ancient galaxy pileup. The unexpected "collision within a collision" could ...

"Until now, it was unknown what type of star would remain after the merger." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Astronomers have ...