Posts by 

Paul Scott Anderson

Europa has enough oxygen to support a million people

Europa has enough oxygen to support 1 million people a day, but that's less than once thought. This could have implications for habitability in Europa's ocean.

1st-ever metal scar on a cannibal star

Astronomers have discovered a metal scar on a cannibal star, a white dwarf or "dead" star. They believe it formed when the star consumed one of its planets.

Earth-passing asteroid seen in new radar images

NASA scientists used the Goldstone Solar System Radar in California to take images of asteroid 2008 OS7 as it passed by Earth on February 2, 2024.

Tatooine exoplanets may be more habitable than we thought

Researchers at Yale University said habitable planets in binary star systems - so-called Tatooine exoplanets - may be more common than previously thought.

New moons! Uranus now has 28 and Neptune 16

New moons for Uranus and Neptune! They're the faintest found so far using Earth-based telescopes. Scientists think they are fragments of larger bodies.

Ancient volcanoes on Mars were diverse

Researchers in China and the U.S. said ancient active volcanoes on Mars were more diverse than previously known, despite a lack of plate tectonics.

Icy Eris and Makemake have warm hearts

NASA's Webb space telescope shows that icy dwarf planets Eris and Makemake have been warm and geologically active on the inside recently, and may still be.

Are Chariklo’s rings shaped by a tiny unseen moon?

A new study suggests a tiny as-yet unseen moon shapes Centaur Chariklo's rings. The process is similar to the shepherd moons in Saturn's rings.

Stronger hurricanes require new Category 6, researchers say

Hurricanes are becoming stronger due to climate change. And 2 researchers in the U.S. say we need a new Category 6 to classify mega-hurricanes.

Isolated dwarf galaxy puzzles astronomers

Astronomers using the Webb telescope discovered an isolated dwarf galaxy 98 million light-years away. Contrary to expectations, it is not forming new stars.