Solar System
Mars Once had Enough Water for a Planet-Wide Ocean 300 Meters Deep
New research has shown that Mars may have been covered in a worldwide ocean when Earth was still covered in…
NASA Provides a Timelapse Movie Showing How the Universe Changed Over 12 Years
The Universe is over 13 billion years old, so a 12-year slice of that time might seem uneventful. But a…
Planet Formation Doesn’t Have to be a Rush job After all
Astronomers believe that it can take 10 million years or more to build a planet like the Earth. But studies…
The Moon Might be One Large Chunk that was Blasted Off the Earth Billions of Years Ago
Where did the Moon come from? The widely-accepted view is that the Moon is a result of an ancient collision…
Robots Might Jump Around to Explore the Moon
LEAP (Legged Exploration of the Aristarchus Plateau) is a mission concept study, funded by ESA, to explore challenging lunar terrains…
If Jupiter's Orbit got Weirder, it Would Actually Make Earth More Habitable
Jupiter has helped sustain life on Earth, but it might have done a better job with a more eccentric orbit.
Planet 9 is Running out of Places to Hide
A search for Planet 9 found hundreds of potential candidates, but they are probably just clouds.
These Ancient Microbes Give a Glimpse of What Extraterrestrial Life Might Look Like
Will we discover simple life somewhere? Maybe on Enceladus or Europa in our Solar System, or further away on an…
JWST Also Looked Inside the Solar System, at Jupiter and its Moons
After the ‘big reveal’ earlier this week of the James Webb Space Telescope’s first full color images and spectra of…
A Swarm of Swimming Robots to Search for Life Under the Ice on Europa
When Galileo pointed his telescope at Jupiter 400 years ago, he saw three blobs of light around the giant planet,…