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

Study: There’s no black hole in this “vampire” binary star system after all

Enlarge (credit: ESO/L. Calçada) Back in 2020, astronomers discovered an unusual star system just 1,000 light years from Earth. However, two different teams disagreed on the nature of the system, which was dubbed HR 6819. One team argued that it was looking at a trinary grouping with two stars orbiting a black hole. The other […]