New observations of a neutron star in the Milky Way's center shed light on what makes mysterious fast radio bursts.
Faraway dwarf galaxies in the universe's distant past — which will become modern Milky Ways — have an unexpectedly stretched-out appearance.
New Webb data suggests that the hot super-Earth 55 Cancri e has a thick atmosphere, perhaps maintained by the planet's magma ocean.
New evidence suggests extreme starbursts and furious galactic winds are at the heart of odd radio circles (ORCs).
The James Webb Space Telescope has revealed galaxies in the early universe, hidden star formation, and sniffed the atmospheres of exoplanets. But it's also exploring closer to home, imaging each of the giant planets in detail. The telescope can see aspects of the planets' compositions in ways that passing satellites…
New simulations showed astronomers where to look for evidence of a dwarf galaxy's bow shock as it crashes through the Milky Way's halo.
A brilliant flash of blue light briefly outshined its host galaxy before fading away — but then it exploded again and again, shedding light on the nature of its source.
The Hubble and Webb Space Telescopes have revealed a bounty of galaxies in a pair of colliding clusters, capturing twinkling lights within.
A star's sudden brightening and, two years later, its sudden dimming point to a cataclysmic collision between two large worlds.
An independent study shows how NASA can help understand unidentified anomalous phenomena, more colloquially known as UFOs.
A newfound cosmic alignment of galaxies challenges fundamental ideas about the nature of our universe.
Astronomers have found a star that has a magnetic field rivaling the strongest magnet humans have ever built — and it might explain the origin of highly magnetic cinders known as magnetars.