Planetary science

Was Venus ever habitable? New UChicago study casts doubt Side by side view of Venus and Earth

Was Venus ever habitable? New UChicago study casts doubt

New technique to determine age will open new era of planetary science, researchers say cross section of a meteorite on black background with colors highlighting different inclusions in the rock

New technique to determine age will open new era of planetary science, researchers say

Rock scooped off speeding asteroid suggests it was once comet that lost its tail Illustration of Ryugu

Rock scooped off speeding asteroid suggests it was once comet that lost its tail

Why did Mars dry out? New study points to unusual answers Overhead view of large formation with a dry riverbed cutting through center

Why did Mars dry out? New study points to unusual answers

Beads of glass in meteorites help scientists piece together how solar system formed Carbonaceous chondrite Allende Meteorite

Beads of glass in meteorites help scientists piece together how solar system formed

Scientists find strange black ‘superionic ice’ that could exist inside other planets A beamline setup at GSECARS, sector 13, Advance Photon Sources, Argonne National Laboratory

Scientists find strange black ‘superionic ice’ that could exist inside other planets

Dust collected from a speeding asteroid analyzed with massive accelerator Argonne physicist Jiyong Zhao

Dust collected from a speeding asteroid analyzed with massive accelerator

Icy clouds could have kept early Mars warm enough for rivers and lakes, study finds Illustration of Mars Perseverance

Icy clouds could have kept early Mars warm enough for rivers and lakes, study finds

There might be many planets with water-rich atmospheres Artist illustration of the exoplanet WASP-121b

There might be many planets with water-rich atmospheres

Scientists confirm third-nearest star with a planet—and it’s rocky like Earth 3-d illustration of a rocky planet with veins of magma

Scientists confirm third-nearest star with a planet—and it’s rocky like Earth