HONOLULU — When stars have tantrums, they don’t just get a little brighter, they blast out intense ultraviolet radiation that ...

A team of astronomers has traced one of the universe’s most powerful explosions—classified as a Fast X-ray Transient—back to a time when the cosmos was only 1.8 billion years old. The event, named ...

Astronomers observed the elusive starlight surrounding some of the earliest quasars in the universe. The findings may shed light on how the earliest supermassive black holes became so massive despite ...

Astronomers have watched a supermassive black hole take two bites of a star, and predicted when it might go back for a third. If it does, this should make for an intriguing stellar light show. Black ...

(CN) — In a study published in Nature on Wednesday, dozens of scientists from around the world propose a ghostly explanation for mysterious blue-tinted light bursts in deep space. The ...

The Hubble Space Telescope’s latest image of the star V838 Monocerotis (V838 Mon) reveals dramatic changes in the illumination of surrounding dusty cloud structures. The effect, called a light echo, ...