What is the longest-period comet we know about?
Solar System
Solar System
Solar System
How big is the largest crater on Callisto?
We find out what the biggest impact is on this Galilean moon
Deep Space
Can stars have weather?
We have the answer to this intriguing question
Solar System
What would happen if Saturn moved past Earth?
Hint: it doesn’t end well for our planet
Space Exploration
Engineers work to get Curiosity rover’s drill back in action
The rover’s team is working to restore its sample-drilling capability using new techniques. The latest development is a preparatory test on Mars
News
Curiosity rover finds an iron-nickel meteorite on the surface of Mars
Known as “Egg Rock,” the space rock is the first on the Red Planet to be examined with a laser-firing spectrometer
News
Lunar mission reveals how the Moon got its impact ‘rings’
New results from the NASA’s GRAIL spacecraft are providing insights into the huge impacts that dominated worlds of the early Solar System
News
Water likely to have existed under Ceres’ surface
Astronomers are discovering more intriguing information about the dwarf planet
Solar System
Is Hyperion made of a spongy material?
Is this Saturnian moon really as soft and spongy as it looks?
Solar System
Why are planets closer to the Sun more dense?
Just why are those gas giants so much smarter than us? Wait, that’s not what we mean…
Take a look inside an asteroid
What are these floating space rocks made of?