The molten planet, with an atmosphere rich in sulfur-bearing gases, is unlike anything astronomers have ever smelled.
The hot super-Earth exoplanet has a magma ocean and orbits a very old star.
The ancient stellar death took place when the universe was a mere 730 million years old.
Researchers may have discovered a gas giant orbiting the star Alpha Centauri A, and it appears to be in the star's habitable zone.
Astronomers have captured a rare glimpse inside HOPS-315, a young star that appears to sit at the center of a nascent version of our own solar system.
The record-breaking galaxy is revealing secrets about the first stars and their unexpected chemical fingerprints.
It's the first evidence of cloud convection in the northern hemisphere of Saturn’s enigmatic moon.
"This has left us scratching our heads."
This exoplanet’s glow confirms it’s real, and it's somehow survived a stellar death spiral.
A stellar occultation this month gave scientists an opportunity to scrutinize the seventh planet from the Sun.
New JWST data strengthens earlier hints that K2-18b, a possible water world 120 light-years away, could host the chemical byproducts of life.
New findings flip a previous theory of a planet's end on its head.
New Webb Telescope data confirms that asteroid 2024 YR4 poses no threat to Earth during its 2032 flyby. As for the Moon, not so much.
Captured by Webb, it's the first direct evidence of auroras on the most distant planet from the Sun.
The Webb Space Telescope captured a chance alignment of a protostellar outflow and a spiral galaxy in a dazzling example of the cosmos' weirdness.
Astronomers using the Webb Space Telescope spotted the gigantic—and growing—primordial galaxy.
A system 130 light-years away contains a gas integral to life processes on Earth.
A new study lends credence to the radical idea that our universe sits within a black hole.
The celestial squabble between two stars has been going on for thousands of years, and is set to continue for another 1 million years.
An edge-on protoplanetary disk looks like two force fields smashing together in deep space.
