Astronomers Discover Exceptionally Short Period Ultracool Dwarf Binary System

New image captures remnant of the first-recorded supernova. The "guest" star was documented by ancient Chinese astronomers some 1,800 years ago and remained visible to the naked-eye for more than 8 months.

Astronomers Go Hunting for Mysterious Q-balls

Astra rocket lost 2 NASA satellites due to 'runaway' cooling system error