Alfredo Carpineti

Solar Orbiter has spotted a large sunspot group forming on the opposite side of the Sun – if it's still active when it rotates into view, it could trigger solar flares.

Quakes don't usually hit the same location every few years. This one does.

An intriguing proposal suggests a single solution to multiple issues that the astronauts will have to face on the Moon.

None of these objects seem to be quite what we expected!

We've only visited Neptune and Uranus once each. The next window to return is coming up, but it won't stay open forever.

The upcoming observatory is “a spectacular next step in the kind of research that we do on planets.”

A single volcano as wide as Arizona is almost three times taller than Earth’s highest mountain.

You, me, space, time, and… a party in L.A.?

Jeff Bezos' company was just awarded the contract to launch NASA's first Moon base mission later this year, and then its rocket exploded.

Its magnetic activity might be shifting into shallower layers, and that could have consequences for space weather and our planet.