Considering the immense size of the universe, it's no surprise that space still holds plenty of secrets for us. Recently, ...

Astronomers recorded the longest gamma-ray burst in history, GRB 250702B, that may be a cosmic event completely new to ...

Stars often fall into black holes, and now it seems the opposite can also occur, producing an extra long-lasting explosion as ...

On July 2, 2025, NASA's Fermi Gamma-ray Burst Monitor (Fermi-GBM) captured around three hours' worth of signals that appeared ...

An ultra-fast flash from the galaxy M82 reveals what may have been a rare "extragalactic magnetar giant flare." ...

The most luminous kilonova candidate to date (short gamma-ray burst 200522A) was detected using the Hubble Space Telescope, Swift Observatory and other telescopes. A kilonova is a "the afterglow ...

Watch an animation of a black hole shooting jets of particles through a "collapsing star at nearly the speed of light" and ...

Some things we see in space appear to outpace light. Now we are learning to harness these bizarre optical illusions to ...

Astronomers are trying to understand what caused a series of gamma ray bursts, or GRBs — the most powerful explosions in the universe. These energetic bursts are typically unleashed by the incendiary ...