Fourth anniversaries aren’t often causes for celebration. But in the case of the James Webb Space Telescope (JWST), which launched on Dec. 25, 2021, this anniversary marks an important transition.

NASA's James Webb Space Telescope captured two nearby dwarf galaxies interacting with each other in this image released on Dec. 2, 2025. Dwarf galaxies can give us insights into galaxies in the early ...

Exoplanet PSR J2322-2650b, orbiting a pulsar, possesses an unprecedented helium-and-carbon-dominated atmosphere, characterized by molecular carbon (C3 and C2) and soot clouds, a composition unlike any ...

An international team of astronomers has achieved a first in probing the early universe, using the James Webb Space Telescope (JWST), detecting a supernova—the explosive death of a massive star—at an ...

In order for NASA to study the mysteries of the universe, the scientists there need to be able to look out into the cosmos. The Hubble Space Telescope did this for a time, giving humanity some ...

Artist's conception of James Webb Space Telescope. Fourth anniversaries aren’t often causes for celebration. But in the case of the James Webb Space Telescope (JWST), which launched on Dec. 25, 2021, ...

Astronomers are studying the hundreds of young, brown dwarf stars inside the stellar nursery. Credit: NASA, ESA, the Hubble Heritage Team (STScI/AURA), A. Nota (ESA/STScI), and the Westerlund 2 ...

The early universe appears to be littered with enormous star-like balls of gas powered by a black hole at their core, a finding that has taken astronomers by surprise and might solve one of the ...

This mash-up of data from the James Webb Space Telescope and the Chandra X-ray Observatory reveals two galaxies mid-collision, with their spiral arms overlapping and bending toward their neighbors' ...

The NASA/ESA/CSA James Webb Space Telescope has captured an amazing view of the iconic Hubble Ultra Deep Field using its MIRI and NIRCam instruments. Credit: ESA/Webb, NASA & CSA, G. Östlin, P. G.

Astronomers are studying the hundreds of young, brown dwarf stars inside the stellar nursery. The billowing, vibrantly visualized formation located 20,000 light-years from Earth were imaged using the ...