In a glimpse of the early universe, astronomers have observed a galaxy as it appeared just 800 million years after the Big ...

Astronomers have found the strongest evidence yet of an atmosphere around a rocky exoplanet.

Researchers employing the James Webb Space Telescope and Canada's NIRISS instrument have observed exoplanet WASP-121b getting ...

The supernova exploded over 13 billion years ago in a galaxy far, far away.

The James Webb Space Telescope's Near Infrared Camera (NIRCam) captured a massive stellar jet in the Sharpless 2-284 (Sh2-284 ...

A surprisingly mature spiral galaxy named Alaknanda has been spotted just 1.5 billion years after the Big Bang—far earlier ...

A rocky exoplanet outside the Earth's solar system may have an atmosphere, according to new evidence gathered by NASA ...

Data from the James Webb Space Telescope suggests that exoplanet TOI-561 b is surrounded by a thick atmosphere above a global magma ocean.

The discovery of strange, ultra-red objects—especially the extreme case known as The Cliff—has pushed astronomers to propose ...

The James Webb Space Telescope has observed a rare supernova from 730 million years after the Big Bang, linked to a gamma-ray burst detected in March 2025.

The hunt is on for terrestrial exoplanets in habitable zones, and some of the most promising candidates were discovered ...

Searching for exomoons—moons that orbit around another planet—was one of the most exciting capabilities expected of the James ...