SUNSET: 
Exoplanet TRAPPIST-1b Has No Atmosphere
The TRAPPIST exoplanets offer the James Webb Space Telescope some of the best opportunities to observe rocky worlds. But Webb images show the innermost planet b has no atmosphere.
Water on Earth Might Predate the Solar System
Astronomers studying the water vapor around a newborn star find that it’s chemically similar to ice in solar system comets, a possible source of Earth’s oceans.
New Planets in the Neighborhood
A planet-hunting consortium is marking five successful years by releasing data on more than 50 worlds.
A Fresh Look at Kepler-444’s Ancient Planetary System
Astronomers have taken a closer look at a system containing three stars and five planets and may have solved a mystery around its formation.
JWST Investigates an Exoplanet "Corgi"
The James Webb Space Telescope has found the tiny tail of a close-in exoplanet that's losing its atmosphere.
Webb Telescope Confirms Earth-size Exoplanet, Tries to Sniff Its Air
The James Webb Space Telescope has confirmed its first exoplanet, a rocky Earth-size planet, and attempted to take the measure of its atmosphere.
Webb Telescope Surveys a Hot Saturn
A collection of five research studies delve into the atmosphere of exoplanet WASP-39b as astronomers seek to better understand the chemistry of a world beyond the solar system.
Was Interstellar Object `Oumuamua a Chunk of Exo-Pluto?
The interstellar pancake named 'Oumuamua might have been a chip off a Pluto-like object in another star system.
Ancient White Dwarf Hosts Planetary Graveyard
Scientists have discovered one of the oldest planetary graveyards in the Milky Way: a cool white dwarf "polluted" with rocky debris.
Shields Up: Red Dwarf Worlds Might Adapt to Hostile Systems
Worlds around red dwarf stars might build an ozone "shield" in response to stellar flares.
Breadcrumbs Lead to Baby Planet
New radio images reveal evidence for a planet forming around the Sun-like star LkCa 15.
Webb's Exoplanet Data Are Almost Too Good
A new study urges caution in interpreting the chemical fingerprints that Webb is collecting of alien worlds.
Webb Captures an Exoplanet, a Brown Dwarf — and a Giant Tarantula
New Webb images reveal the space telescope's first exoplanet, first brown dwarf, and a stellar nursery teeming with activity.
Webb Reveals Jupiter, Puffy Planet, and Galactic Maelstroms in a New Light
Round out your week with these stunning views of the universe from the James Webb Space telescope.
When Planets Collect Comets
What kind of planets are likely to ensnare comets coming in from the icy outer reaches of a planetary system?
What We See in the First Science Images from the James Webb Space Telescope
The James Webb Space Telescope released its first science images today. Here's what these images show us.
What the James Webb Space Telescope's First Year Will Reveal
The James Webb Space Telescope's first year of observations promises to reveal exoplanet atmospheres and surfaces, infant galaxies, and maybe even the first black holes.
Citizen Science: Projects & Collaboration
Citizen Scientists Detect Dusty Disks
Disk Detective, a citizen science project dedicated identifying planet-forming disks around young stars, reports their latest results.
A Strange White Dwarf with a Chaotic Past
New observations show that both rocky and icy worlds fell onto a white dwarf, indicating past orbital chaos in the system.
How to Image an Exoplanet with Just a Few Pixels
Using Earth as an example, astronomers are testing a new technique that could image rocky exoplanets without resolving them.
