SUNSET: 
How Can a Puny Star Make a Giant Planet?
Astronomers have directly imaged a giant planet around a low-mass star — something they didn’t think was possible.
Astronomers Have Spotted the Youngest Planet Yet
A baby planet is carving out a gap in the natal disk of its star as it assembles material, providing a rare window into the earliest stages of planet formation.
Stunning Panorama Reveals Tiniest Brown Dwarfs Yet
The stellar nursery IC 348 is forming lots of stars — and some of the puniest brown dwarfs (aka, “failed stars”) we’ve ever seen.
Are Moons Growing Around Exoplanet PDS 70c?
New research suggests that the circumplanetary disk surrounding the exoplanet PDS 70c contains a ring of dense dust, and the conditions within this ring may allow baby moons to form.
Exoplanet or Exomoon? New Contender Elicits Skepticism
Astronomers have found a Jupiter-mass world orbiting a brown dwarf that orbits a star.
First Atmosphere Detected on a Terrestrial World
A team of astronomers have discovered helium escaping from a rocky planet, marking the first detection of an atmosphere on a rocky world.
Famous System Has a Third Planet: Beta Pictoris d
Two teams of astronomers independently discovered a third giant gas planet orbiting in the famous Beta Pictoris system.
"Rogue" Neptunes Are Detached But Not Alone
"Rogue" Neptune-size worlds might not roam the galaxy totally on their own, just very far away from their parent stars.
Cotton-Candy Exoplanets: Two for the Price of One!
NASA’s Transiting Exoplanet Survey Satellite has found two “super-puff” planets in the same system, each one as light as cotton candy.
How Did This Peculiar Planet Pair Form?
A planetary odd couple — a mini-Neptune and a hot Jupiter — probably formed much farther away from their star before migrating closer in.
Nearby Super-Earth Has No Atmosphere and a Dark, Moon-like Surface
The James Webb Space Telescope has observed the surface of a bare rocky exoplanet, revealing old, dark rock akin to that on our Moon.
Planets Collide Around Young, Sun-like Star
Astronomers have uncovered evidence that two planets collided around a young star, revealing how giant impacts sculpt baby solar systems.
New Astro Images: Saturn, the Crab Nebula, and a Newborn Planet
Striking images from Hubble, Webb, and the Very Large Telescope dive into Saturn's atmosphere, capture the Crab Nebula's expansion, and reveal a newborn planet.
Molten Sulfurous World Blurs Exoplanet Categories
An oddly low-density planet isn't quite rocky or gaseous — instead, it might have a deep ocean of magma and a stinky, sulfurous atmosphere.
A Planetary System That Breaks the Rules
The unexpected arrangement of exoplanets around a star more than 100 light-years from Earth might change how we think about planet formation.
Astronomers Find Hints of an Exomoon
Astronomers might have found a moon half the mass of Jupiter orbiting in a nearby system, based on the wobbles of its host world.
Rogue Saturn Discovered Floating Through the Milky Way
Astronomers have measured the mass of a free-floating planet for the first time. Comparable to Saturn, it’s surprisingly massive for such rogue worlds.
Webb’s First Look at TRAPPIST-1e Hints at a Titan-like Atmosphere
Observations from the James Webb Space Telescope suggest the planet might have a nitrogen-and-methane atmosphere — but more data are needed to rule out a bare rock scenario.
A Super-Earth Candidate Less Than 20 Light-Years Away
Astronomers have discovered a ready-to-image super-Earth candidate less than 20 light-years away.
Rogue World Found Gobbling Material at Unprecedented Rate
Astronomers discovered a small, free-floating object that’s accreting matter at a breakneck pace, suggesting that some planet-size worlds could form similar to stars.