astronomy

Meet Hippocamp, Neptune's new moon

For the first time in decades, a new tiny moon has been found in orbit around the gas giant Neptune, according to a study published Wednesday in the journal Nature.

Citizen scientist discovers ancient astrophysical object

A volunteer citizen scientist working with a NASA project has found the coldest, oldest-known white dwarf, and it's surrounded by rings of dust and debris, according to a study published Tuesday in The Astrophysical Journal Letters. Researchers believe it may be the first white dwarf known to have multiple rings.