Why Mars is red … and the exciting possibilities for life

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Why Mars is red … and the exciting possibilities for life

Are we wrong about why Mars is red? An iron oxide called ferrihydrite might be responsible. If so, this also further supports ancient Mars being habitable.

Paul Scott Anderson

March 5, 2025

Vacation-style beaches on Mars? New evidence for lost ocean

Were there once sunny, sandy beaches on Mars? A new study of data from China's Zhurong rover says yes. They were the shorelines of a now long-lost ocean.

Paul Scott Anderson

March 4, 2025

Solar system passed through Orion, says intriguing new study

About 14 million years ago, our solar system passed through a dense region of dust and gas in the constellation Orion, possibly affecting Earth's climate.

Shireen Gonzaga

March 4, 2025

Beavers know better. They saved the Czech government $1 million!

After a plan for building a dam stalled in the Czech Republic for seven years, beavers stepped in and did what beavers do, building the dam for free!

Cristina Ortiz

March 3, 2025

Speedy white dwarf planets are more likely to be habitable

Scientists thought that planets around white dwarf stars would be unhabitable. But a new study shows how some white dwarf planets could support life.

Paul Scott Anderson

March 2, 2025

Sun activity archive for March 2025

Sun activity archive for March 2025. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.

March 1, 2025

Wild fish can recognize unique humans with visual cues

Wild fish are able to recognize divers based on visual cues from their dive gear. But they cannot tell apart divers that are dressed in identical dive gear.

Shireen Gonzaga

February 28, 2025