A distant neutron star has abruptly erupted in brightness, surging to roughly one hundred times its usual output and leaving astronomers scrambling to explain what could drive such a violent change.

Sep. 12—In the cosmic tug-of-war between matter and antimatter, matter has the upper hand. Our universe leans more heavily on the side of matter. In a one-to-one ratio, matter and antimatter would ...

The celestial remnant that lingers after two neutron stars merge isn't like either of its parents. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works ...