Scientists have thought the organics in Enceladus' plumes originate in its ocean. A new study suggests at least some of them might be formed by radiation.
Astronomers have spotted a mysterious gamma-ray burst that lasted for a day. This is by far the longest event we've seen of its kind. So what caused it?
Astronomers looked at 130 years’ worth of data on planetary nebula IC 418. They found its central star is heating up faster than any star ever observed.
The constellation Cepheus the King is visible from the Northern Hemisphere every night of the year due to its close location to Polaris, the North Star.
An astronomer explores the possibility of life around white dwarfs, stars as small as Earth but far denser that may host habitable zones and planets with water.