A novel method uses gravity data to determine where density anomalies lie inside planetary bodies.
planets
Posted inNews
A Planet Is Dramatically Losing Its Atmosphere
Helium that was once part of the atmosphere of the extrasolar planet HAT-P-32b is being ripped away and forming two giant streamers of gas several million kilometers long.
Posted inNews
A Mission to Uranus Could Help Find Planet 9
Narrowing down the search is essential for gaining time on a high-powered telescope that could spot the hypothesized planet directly.
Posted inNews
Molten Meteorites Didn’t Deliver Earth’s Water
A new study has ruled out large, once-molten meteorites called achondrites as sources of Earth’s water.
Posted inFeatures
Edgard Rivera-Valentín: Boricua Planeteer
Inspired by the science infrastructure in their own backyard.
Posted inEditors' Vox
The Mystery of Methane on Mars Thickens
Two recently published papers zoom in on the mystery source of methane in the Martian atmosphere.
Posted inNews
To Make a Big Moon, Start with a Small Planet
Why is our Moon so massive compared with Earth, and how might that configuration happen elsewhere?
Posted inScience Updates
Planetary Dunes Tell of Otherworldly Winds
On Earth and throughout our solar system, ripples and dunes in sand and dust offer insights into how winds blow, liquid currents flow, and solid particles fly and bounce over the terrain.
Posted inEditors' Highlights
A Better Look at the Moon’s Middle Mantle
A new analysis strategy sheds new light on the electrical conductivity of the lunar mantle between 300 and 900 km depth.