Three billion years ago, a sun -like star reached the end of its life, throwing off its outer layers following its red giant ...
Astronomers call a special kind of supernova a "cosmic yardstick" for good reason: The so-called Type Ia supernova gives off a predictable amount of light, making it a handy tool for measuring ...
Astronomers find an explanation for the fastest stars in the galaxy while uncovering a new mechanism for a supernova explosion. Credit: Technion illustration Astronomers call a special kind of ...