A double blast of dying stars may be the first observed case of a long-hypothesized, never proven “superkilonova.” Although ...

Astronomers may have discovered the first example of an explosive cosmic event called a "superkilonova," in the form of a ...

The cosmos has delivered a rare kind of fireworks display, and astronomers are racing to understand what it means. A strange double flash from a distant galaxy appears to show two neutron stars ...

A puzzling cosmic blast detected in both light and gravitational waves may hint at a previously unseen type of explosion, challenging astronomers to rethink how neutron stars are born and collide.

A distant neutron star unexpectedly reawakened, unleashing a powerful X-ray surge that may reveal how the universe’s most ...

Neutron stars are ultra-dense star remnants made up primarily of nucleons (i.e., protons and neutrons). Over the course of millions of years, these stars progressively cool down, radiating heat into ...

XRISM’s observations of GX13+1 revealed a slow, fog-like wind instead of the expected high-speed blast, challenging existing models of radiation-driven outflows. The discovery hints that temperature ...

The record-setting cosmic outburst was actually a gamma-ray burst, the most powerful class of cosmic explosions.

A spoonful of this star's matter can weigh a billion tons. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. By developing a new theoretical ...