During observations of Pluto, an astonishing discovery gradually emerged—there seems to be ice volcanoes on Pluto. This ...

Hubble discovered a white dwarf planet devouring a Pluto-like object, revealing debris rich in water and nitrogen.

By studying the chemical composition of an odd, dying star, astronomers discovered that it had been feasting on what used to ...

Reno died in what was like a junior varsity battle before the main event at Antietam Creek three days later. Because Antietam was so catastrophic, Fox’s Gap and the other clashes before Sept. 17, 1862 ...