Planetary Science
- Planetary Science
Passing through the Milky Way’s arms may have helped form Earth’s solid ground
Barrages of comets stirred up by the early solar system’s journey around the center of the galaxy could explain the timing of ancient rock formation.
- 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.
- Earth
Not one, but two asteroids might have slain the dinosaurs
A craterlike structure found off West Africa’s coast might have been formed by an asteroid impact around the same time the dinosaurs went extinct.
- Planetary Science
Oort cloud comets may spin themselves to death
How icy objects from the solar system’s fringe break up as they near the sun is a long-standing mystery. One astronomer now thinks he has an answer.
- Planetary Science
Asteroid 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.
- Space
How 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.
- Space
How 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.
- Planetary Science
Astronauts 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.
- Space
Amateur 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.
- Planetary Science
A 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.
- Earth
50 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.
- Astronomy
New 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.
