A strange double flash in a distant galaxy may be the first glimpse of a “superkilonova,” a cosmic one‑two punch that fuses ...

Gold, uranium, and other heavy elements on Earth did not form here. They were born in the violent deaths of massive stars and the collisions of neutron stars, traveling across the galaxy before ...

Scientists using the James Webb telescope observed a distant exoplanet with an atmosphere of soot and diamonds, challenging all explanations.

A double explosion, in which a dying star split, then recombined, may be a long-hypothesized but never-before-seen "superkilonova." ...

Neutron stars explained through stellar remnants and collapsed stars, revealing extreme density, gravity, magnetism, and ...

Scientists from several institutions, including the University of Chicago, discovered a lemon-shaped planet with an ...

The James Webb Space Telescope (JWST) was involved in yet another first discovery recently available in pre-print form on ...

A massive star may have burst, leaving behind two dense, dead cores, which then collided and caused another explosion ...

A 14%-illuminated waxing crescent moon will hang low in the southwest tonight, soon after sunset, still in Capricorn, with ...

In 2017, astronomers found hypervelocity stars believed to have come from the Large Magellanic Cloud, supposedly kicked out ...

The distant planet appears to be in the shape of a lemon as the pulsar's intense gravity stretches the planet.

From an interstellar comet to breathtaking auroras and from brand-new rockets to iconic space telescopes, here are some of our favorite images from the cosmos in 2025 ...