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

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 ...

Astronomers may have discovered the first example of an explosive cosmic event called a "superkilonova," in the form of a gravitational wave signal detected on Aug. 18, 2025.

As the collapsed core of a massive star, a neutron star is a small but incredibly dense object, packing up to three times the mass of our sun into a small volume. Models predict that neutron stars are ...

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 ...