Posts by 

Paul Scott Anderson

Earth-sized exoplanet discovered around ultracool dwarf star

Astronomers have discovered a new Earth-sized exoplanet orbiting the ultracool dwarf star SPECULOOS-3. But any atmosphere it had is probably long gone.

Juno images of Europa reveal a complex, active surface

NASA has released some images of Europa, the ocean moon of Jupiter. They provide new clues about the moon's ice shell and other intriguing surface features.

Astronomers find 60 Dyson sphere candidates, among millions of searched stars

Two teams of astronomers in Europe say they have found 60 Dyson sphere candidates. Are they alien megastructures or a previously unknown natural phenomenon?

Possible atmosphere on rocky exoplanet found for 1st time

NASA's Webb telescope has tentatively detected an atmosphere on rocky exoplanet 55 Cancri e, a hot super-Earth world only 41 light-years away.

Can earthquakes be triggered by intense weather?

A new study from MIT shows that climate and intense weather events like heavy snowfall and rain helped produce a swarm of earthquakes in Japan starting in 2020.

How did water on Venus disappear? Blame this molecule

Venus is a near-twin to Earth in size and mass. But what happened to all the water on Venus, which scientists say once existed?

Exoplanet WASP-43 b weather is hot and wild

NASA's Webb telescope has mapped the weather on WASP-43 b, a hot Jupiter exoplanet 283 light-years away. It's blistering hot with 5,000-mile-per-hour winds.

Did Webb find signs of life on exoplanet K2-18 b?

NASA's Webb telescope looked at the sub-Neptune exoplanet K2-18 b. It found methane, carbon dioxide, a possible ocean, and even ... maybe ... a biosignature.

The strange case of methane on Mars: Possible new answers

New experiments show that methane on Mars, in Gale crater, may seep out of the ground when hard crusts of perchlorate salt temporarily warm up and weaken.

See the Martian spiders of Inca City in new images

Martian spiders? Inca City? Both geologic features on Mars. The European Space Agency (ESA) just released new images of them. Take a look!