Exoplanets

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.

Solar System

Two Extremely Red Asteroids Discovered Far from Home

Astronomers have discovered the two reddest objects in the asteroid belt, and their origin story might tell us more about planet formation.

Solar System

"Liquid Water" Below Martian Surface Might Be Clay

Mysterious spots that scientists thought were subsurface lakes beneath the Martian south pole may instead be ancient clay deposits.

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.

Giant flare on a magnetar

Stellar Science

Milky Way Magnetar Spits Gamma Rays on Schedule

A Milky Way magnetar surprises astronomers by burping up gamma rays right when their predictions anticipated.

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.

Solar System

More Mysterious Buried Splotches on Mars Might Not be Liquid Water

Astronomers find more bright spots underneath Mars's south polar cap, but could they really be subterranean lakes?

Solar System

Astronomers Map the Solar System's Edge in 3D

Collecting high-speed atoms has enabled researchers to trace the shape of our Sun’s protective bubble.

Psyche

Solar System

Iron Volcanos: Maybe Not Science Fiction After All

A new study of asteroid 16 Psyche suggests that ferrovolcanism, volcanoes that spewed molten iron, might have been present on this object.

two colorful radio gets stream out either side of a central, invisible point

Black Holes

From Starving Black Holes to Warped Galaxies

Hot topics from the American Astronomical Society summer meeting range from colliding galaxies, to warped galaxies, to starving black holes.

Galaxies

Not All Star-forming Clouds Are The Same

Astronomers have created the first high-resolution maps of the big, dense gas clouds that form stars within galaxies.

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