Planetary Science
- Planetary Science
Up close and personal with an asteroid
The Rosetta orbiter makes its second swing past a relic of the early solar system.
- Earth
Antarctic shoal breaks the ice
Instruments on a massive berg help pinpoint a previously unreported undersea ridge.
- Earth
Planes can trigger snowfall
Under certain conditions, aircraft can trigger precipitation as they pass through moisture-laden clouds.
- Planetary Science
Hubble hunting for Jupiter bruise
No scar found yet on planet from June 3 crash with unidentified object.
- Planetary Science
Before the Mississippi, minerals show ancient rivers flowed west
Michigan zircons uncover the path of an ancient river system across North America.
- Earth
Hazy antidote to a faint young sun
A new theory suggests atmospheric answer to the continuing paradox of why early Earth wasn’t icy.
- Planetary Science
Jupiter’s crash of ’09
The body that crashed into Jupiter last summer was likely an asteroid, and such impacts might occur as frequently as every 10 to 15 years, new studies suggest.
- Planetary Science
Martian moon probably pretty porous
Phobos may be a mass of rocky rubble, not a captured asteroid.
- Earth
Gravity lows mark burial sites of ancient tectonic plates
Dips in Earth's gravitational field are tied to 'slab graveyards'
- Planetary Science
Warmth in the dark age
Lower reflectivity kept Earth from freezing under a fainter young sun.
- Planetary Science
Signs of giant comet impacts found in cores
An uptick in ammonium may be evidence of a 50-billion-ton strike at the end of the ice age.
- Earth
Irrigation draining California groundwater at ‘unsustainable’ pace
The GRACE satellites have tracked water movement from the Central Valley since 2003.
