Astronomers keep finding new moons of Jupiter and Saturn

Astronomers have found four new moons orbiting Jupiter and 11 new moons around Saturn.

Hubble Space Telescope accidentally witnesses comet C/2025 K1 (ATLAS) breaking apart

NASA’s Hubble Space Telescope has captured a rare cosmic moment: a comet breaking apart in real time.

Astronomers missed a space explosion as powerful as a billion suns — until they spotted its echo

A cosmic explosion with an energy equivalent to the output of a billion suns went unnoticed by astronomers until they caught the “echo” of this gamma-ray burst.

These cotton candy exoplanets hide behind a haze even the James Webb Space Telescope can’t penetrate

These worlds are among the least dense ever found, and all attempts to probe their atmospheres have been blocked by a mysterious smog.

NASA peers inside an asteroid | Space photo of the day for March 19, 2026

NASA has used advanced imaging techniques to peer inside samples of asteroid Bennu, discovering extensive networks of cracks running throughout the rock particles.

‘At the edge of what we thought possible’: Astronomers find extremely rare star from ancient universe

“Cosmic archaeologists” have discovered an iron-deficient second-generation star, which provides evidence of how ancient stars enriched their successors.

X-ray spacecraft watches monster black hole wake up and fire cosmic bullets at starburst galaxy

The research could shed light on how black holes vomit out matter and how this influences their home galaxies.

Ryugu asteroid sample contains all five key components of DNA, scientists find

A sample collected by the Hayabusa 2 spacecraft from the spinning top-like asteroid contained the nucleobases adenine, guanine, cytosine, thymine, and uracil.

How fast is the universe expanding? Astronomers may be one step closer to resolving ‘Hubble trouble’

The local universe may be expanding more slowly than previously thought, a discovery that could relieve a pesky discrepancy known as the Hubble tension.