Europa

Also: testing the efficacy of WWI "dazzle" camouflage; how the male blue-lined octopus survives deadly mating ritual.

Why exomoons could sustain ET as well as any exoplanet

Scientists find a way to look for alien life that doesn't need elaborate equipment.

Deep trenches are the likely source of carbon on the surface of Uranus' moon Ariel and might be connected to a subsurface ocean, a new study suggests. The post Are grooves on Uranus' moon Ariel evidence for an ocean? first appeared on EarthSky.

What's lurking in the Martian soil?

"That's really saying something."

The newly-discovered volcanic hotspot is larger than Earth's Lake Superior, and belches out eruptions six times the total energy of all the world's power plants.

NASA's findings provide the strongest evidence yet that asteroids may have planted the seeds of life on Earth and that these ingredients were mingling with water almost right from the start.

Does Jupiter's moon Io have a global subsurface magma ocean? A new study said no, and that Io's raging volcanoes are self-powered with their own magma pools. The post Io's raging volcanoes are self-powered first appeared on EarthSky.

Writers, artists, photographers and researchers share the stories behind the stories

The most volcanic place in our solar system.

Weather permitting, Jupiter will not only be brighter than most other stars and planets in the evening sky, but will also be visible all night long.

NASA's Europa Clipper -- the largest spacecraft NASA has ever developed for a planetary mission -- is already 20 million km (13 million miles) from Earth.

Learn how you can see bright Jupiter from Earth, helped by its massive size and banded, reflective cloud tops, in December's Night Sky Notes!

A 16.5-inch-long prototype of a robot designed to explore subsurface oceans of icy moons is reflected in the water's surface during a test in a competition

Join us at 12:15 CST (18:15 UTC) on Monday, November 11, when former NASA chief Alan Stern will be discussing the Fermi Paradox. Where are all the aliens? The post LIVE MONDAY: A Fermi Paradox solution with Alan Stern first appeared on EarthSky.

A team of scientists from the Lunar and Planetary Laboratory at the University of Arizona, TU Delft, and Caltech has developed a new method to compute how tides affect the interiors of planets and moons in the Solar System.

Uranus's moon Miranda has crazy, jumbled terrain, and scientists say the best fit for how it got that way is an underground ocean that might still exist today. The post Evidence for ocean on Uranus's moon is 'incredibly surprising' first appeared on EarthSky.

NASA Europa Clipper mission is on its way to Europa, but it has some stops to make before it investigates the habitability of the icy ocean moon of Jupiter, ...

NASA's Europa spacecraft launched today on a SpaceX Falcon Heavy rocket. It will slingshot around Mars, then Earth, and reach Jupiter in April 2030. Once in orbit around Jupiter, the…