Solar winds are not the main culprit in stripping the planet’s atmosphere, a new study suggests.
Atmospheres
How Hot Is Europa? Now There’s a Map for That
The new global map of Europa’s surface heat also highlighted one spot on the moon that is inexplicably cold.
What Caused the Sudden Heating of Uranus's Atmosphere?
A recently observed temperature reversal on Uranus may offer a clue to a long-standing mystery: Why are the upper atmospheres of gas giants so hot?
First Results from the MAVEN Mission to Mars
Geophysical Research Letters publishes First Results from the MAVEN Mission to Mars, demonstrating a remarkable achievement of NASA's MAVEN team and the broader scientific community.
What Formed These Curious Ripples on Mars?
Dunes, ridges, or something else? Scientists seek to understand the origins of transverse aeolian ridges.
When the Sun Goes Quiet, Titan Gets Gassy
Observations from NASA's Cassini probe show that the level of methane in Titan's atmosphere depends on the Sun's 11-year cycle of magnetic activity.
What’s Driving Titan’s Atmosphere?
A new analysis of Cassini data reveals a major source of heavy hydrocarbons on Saturn’s moon Titan.