21–40 of 314 results
Proxima d

Exoplanets

New Planet Discovered Around Proxima Centauri, Star Nearest the Sun

A new instrument on a powerful telescope has enabled astronomers to discover another planet around our nearest stellar neighbor.

a dark purple orb is half illuminated by a bright white, smaller orb to its left

Exoplanets

Astronomers Watch the Making of a Super-Earth

Gaseous mini-Neptunes may become rocky super-Earths when they lose their atmospheres. Now, astronomers have caught that process in action.

Exoplanets

Exoplanet Hunter Racks up 5,000 “Objects of Interest”

Since its 2018 launch, the unassuming TESS satellite has found 175 confirmed exoplanets (so far) among 5,000 “objects of interest.”

Neptune-size exomoon around a giant planet (art)

Exoplanets

Needle in the Haystack: New Exomoon Candidate Found

Astronomers may have found a second Neptune-size exomoon hidden in the retired Kepler space telescope’s data.

3D galaxy map

Exoplanets

Astronomy in Pictures: Largest 3D Map of Our Universe and a Stellar Intruder

This week astronomers have announced the completion of the largest 3D map of galaxies across the cosmos, plus exquisite radio observations show what happens when a stellar intruder interrupts planet formation.

Artist's concept of giant planet in a far-out orbit

Exoplanets

Giant Planet Imaged Around Massive Stars

Astronomers have imaged a giant planet around a massive pair of stars, a discovery that challenges our notions of how planets form.

M51 (Whirlpool Galaxy) with extroplanet candidate marked

Exoplanets

Did We Find a Planet in Another Galaxy?

Astronomers using an innovative method have detected the signal of what could be an extragalactic exoplanet. But confirming its existence will be difficult.

Black hole-powered mushroom cloud in space

Exoplanets

Astronomy in Pictures: Black Holes, Baby Stars, and Magnetic "Tunnels"

Astronomers witness the unfurling of a black hole-powered mushroom cloud, a baby super-Jupiter, and a magnetic "tunnel" around the solar system.

Exo-Neptune AU Mic b (art)

Exoplanets

Infant “Hot Neptune” Provides Clues to Its Birth

How’d a nice young ice giant end up in such a hot orbit? Scientists investigate the mysterious exoplanet AU Microscopii b.

an illustration of a flaring red dwarf, with a disk of gas and dust containing an earth-like exoplanet.

Stellar Science

Red Dwarfs Aren’t So Bad (For Planets) After All

Red dwarf stars appear to flare preferentially at high latitudes, which might keep their exoplanets habitable instead of hellish.

Illustration of WASP-79b

Exoplanets

A Pileup of Perpendicular Planets

In some planetary systems, the direction that a star spins and the direction its planets orbit don’t always line up. A new study explores what we can learn from these nonconformists.

the PDS 70 circumstellar disk

Exoplanets

Astronomers Detect Potential Moon-forming Disk around an Exoplanet

Astronomers have made the first clear detection of a dusty disk surrounding an exoplanet, which could eventually go on to form moons.

Dust and gas of Elias 2-27's disk shown in composite

Exoplanets

Gravitationally Unstable Disk May Collapse to Form Planets

Astronomers investigate the spiral arms of a young star's disk and find evidence of a disk so massive that it could collapse to form planets.

Exoplanets

NASA’s Kepler Finds Outcast Earths

Astronomers uncovered four new Earth-mass rogue planet candidates by searching for microlensing events observed with Kepler.

Illustration of surface of planet orbiting Barnard's star

Exoplanets

Astronomers Challenge Claim of Planet Around Barnard's Star

Astronomers thought a super-Earth might orbit nearby Barnard's star. But a new study disputes that claim, arguing that stellar activity might be masquerading as the planetary signal.

Proxima Centauri flare

Exoplanets

Proxima Centauri Releases Powerful Flare

The Sun dwarfs its nearest stellar neighbor, but Proxima Centauri's flares pack a comparatively energetic punch.

Far-out exoplanet YSES 2b

Exoplanets

Far-out Gas Giant Exoplanet Puzzles Astronomers

Astronomers have discovered a super-Jupiter orbiting its young star on a surprisingly wide orbit. How did it get there?

An Artist's impression of WASP-107b

Exoplanets

Spotting a Faint Escaping Atmosphere

Low-density exoplanets orbiting close to their host stars tend to lose their atmosphere. Now, astronomers can measure how fast it disappears.

Exoplanets

Rocky Planet Found Around 10 Billion-Year-Old Star

Astronomers have found an Earth-size (but not at all Earth-like) planet around an ancient star that has a nice high view of our galaxy.

Brown dwarf aurorae

Exoplanets

Radio Transmission from a Brown Dwarf

The radio discovery of a brown dwarf holds promise for future exoplanet detections.

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