Perseverance rover captures view of Mars' Belva Crater

The Mastcam-Z instrument aboard NASA's Perseverance Mars rover recently collected 152 images while looking deep into Belva Crater, a large impact crater within the far larger Jezero Crater. Stitched into a dramatic mosaic, ...

Wallonia as an international reference for the timeline

Researchers at the Evolution & Diversity Dynamics Lab at the University of Liège (Belgium) have proposed a new definition of the geological boundary between the Devonian and Carboniferous periods (359 million years). This ...

Undersea volcanism may explain medieval year of darkness

Starting in 536 A.D., the sky went dark for more than a year. In some parts of Europe and Asia, the sun only shone for about four hours a day, and "accounts say the sun gave no more light than the moon," says Dallas Abbott, ...

Rock-solid archives record variations in the Earth's orbit

The shape of Earth's orbit around the sun and the orientation of its axis undergo regular variations over periods of thousands to millions of years. These variations—known as Milankovitch cycles after the Serbian geophysicist ...

NASA's Mars Curiosity debuts autonomous navigation

(Phys.org) —NASA's Mars rover Curiosity has used autonomous navigation for the first time, a capability that lets the rover decide for itself how to drive safely on Mars.

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