Astronomy
The James Webb telescope spotted CO2 in an exoplanet’s atmosphere
The first definitive detection of the gas on a world in another solar system paves the way for detections in planets that are more Earthlike.
Planetary Science
More Stories in Planetary Science
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Planetary ScienceAsteroid impacts might have created some of Mars’ sand
Roughly a quarter of the Red Planet’s sand is spherical bits of glass forged in violent impacts, new observations reveal.
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SpaceHow balloons could one day detect quakes on Venus
A new study opens the door for future balloon-based missions to study the geology of other worlds.
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SpaceHow Mars rovers have evolved in 25 years of exploring the Red Planet
Over 25 years, remotely controlled rovers have uncovered Mars’ watery history and continue to search for evidence that life once existed there.
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Planetary ScienceAstronauts might be able to use asteroid soil to grow crops
Researchers grew romaine lettuce, chili pepper and pink radish plants in mixtures of faux asteroid soil and peat moss.
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SpaceAmateur astronomers’ images of a rare double aurora may unlock its secrets
With breathtaking videos, citizen scientists have shown researchers a new pattern of auroras that may solve the mystery behind a strange red glow.
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Planetary ScienceA new look at the ‘mineral kingdom’ may transform how we search for life
A new census of Earth’s crystal past hints that life may have begun earlier than expected, and could be a tool to look for water and life elsewhere.
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Earth50 years ago, a new theory of Earth’s core began solidifying
In 1972, scientists proposed that Earth’s core formed as the planet came together. Fifty years later, that theory is generally accepted, though many mysteries about the core remain.
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AstronomyNew Gaia data paint the most detailed picture yet of the Milky Way
Gaia’s new data can tell us about galaxies the Milky Way has swallowed, the young solar system and asteroids that could hit Earth.
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Planetary ScienceSamples of the asteroid Ryugu are scientists’ purest pieces of the solar system
Samples Hayabusa2 brought to Earth from asteroid Ryugu are far fresher than similar types of meteorites that scientists have found.