Tech

Meet the micronova: Astronomers discovered new type of stellar explosion

Artist’s animation of a micronova, a new type of stellar explosion. Credit: European Southern Observatory. Astronomers have discovered highly localized thermonuclear blasts coming from the surface of three white dwarf stars—unusually short-lived events they have dubbed “micronovae.” They’re similar to novas, except these blasts can burn through a tremendous amount of material in just a […]

Tech

A cosmic mystery: Astronomers capture dying star blowing smoke rings

Enlarge / A rendering of the star V Hydrae, or V Hya for short. In its death throes, the star emitted a series of expanding rings that scientists calculated are being formed every few hundred years, per UCLA astronomer Mark Morris. (credit: ALMA (ESO/NAOJ/NRAO)/S. Dagnello (NRAO/AUI/NSF)) Astronomers have caught a red giant star going through […]