Astronomers have discovered a Saturn-mass rogue planet nearly 10,000 light-years away. It's the 1st one found using both observatories on Earth and in space.

Paul Scott Anderson

January 8, 2026

Atmosphere on lava planet is an exciting surprise

Astronomers have found evidence for a thick atmosphere on lava planet TOI-561 b. It's a broiling hot super-Earth world 560 light-years from Earth.

Paul Scott Anderson

January 2, 2026

Are Uranus and Neptune rock giants and not ice giants?

Are Uranus and Neptune really ice giants as scientists have long thought? A new study suggests they might be much more rocky instead of icy on the inside.

Paul Scott Anderson

January 1, 2026

Strange ‘spider’ on Europa hints at water lurking below

Researchers say that a huge 'spider' on Europa likely formed when a crater-creating impact caused briny water to spill out onto the surface.

Paul Scott Anderson

December 27, 2025

No ocean on Titan? New research reveals slushy ice world

Scientists thought there was a global ocean on Titan beneath its icy surface. But a new study says the moon's interior may be more icy and slushy instead.

Paul Scott Anderson

December 26, 2025

Weird, ultra-hot, double-tailed planet surprises scientists

WASP-121 b is a scorching double-tailed planet. Helium gas is escaping from its atmosphere and forming 2 huge tails along its orbit.

Paul Scott Anderson

December 17, 2025

Researchers question methane atmosphere on TRAPPIST-1e

Previous hints of a methane atmosphere on TRAPPIST-1e might not be accurate, a new paper suggests. But the tantalizing exoplanet could still have an atmosphere.

Paul Scott Anderson

December 17, 2025

Paul Scott Anderson

Paul Scott Anderson has had a passion for space exploration that began when he was a child when he watched Carl Sagan’s Cosmos. He studied English, writing, art and computer/publication design in high school and college. He later started his blog The Meridiani Journal in 2005, which was later renamed Planetaria. He also later started the blog Fermi Paradoxica, about the search for life elsewhere in the universe. While interested in all aspects of space exploration, his primary passion is planetary science and SETI. In 2011, he started writing about space on a freelance basis with Universe Today. He has also written for SpaceFlight Insider and AmericaSpace and has also been published in The Mars Quarterly. He also did some supplementary writing for the iOS app Exoplanet. He has been writing for EarthSky since 2018, and also assists with proofing and social media.