Science

Colossal Discovery on Mars Could Drive Surging Magma Under the Surface

Colossal Discovery on Mars Could Drive Surging Magma Under the Surface

Scientists may have just identified the culprit behind the signs of recently active volcanism on Mars. Beneath a broad plain called the Elysium Planitia, a colossal, 4,000-kilometer (roughly 2,500-mile) wide convection plume in the Martian mantle could be driving molten magma up as far as the surface. This could explain multiple lines of evidence that …

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After the Artemis I mission's brilliant success, why is an encore 2 years away?

After the Artemis I mission’s brilliant success, why is an encore 2 years away?

Enlarge / Orion, the Earth, and the Moon, captured during the Artemis I mission. NASA The launch of the Artemis I mission in mid-November was spectacular, and NASA’s Orion spacecraft has performed almost flawlessly ever since. If all goes as anticipated—and there is no reason to believe it won’t—Orion will splash down in calm seas …

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Smilesaurus, an iconic gorgonopsian that lived during the late Permian in what is now South Africa.

Monstrous ‘gorgons’ survived a mass extinction, but they were a ‘dead clade walking’

Reports of a “gorgon” mass extinction at the end of the Permian period were greatly exaggerated, new research finds. These bizarre paleo-beasts were thought to have died out along with most other life on Earth at the time, but scientists recently found that some of these so-called gorgons survived into the Triassic period. However, they …

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NASA Orion Spacecraft in Space Illustration

NASA Artemis I: Orion Spacecraft Experiencing Power Issues

Illustration of NASA’s Orion spacecraft flying through space. Credit: NASA NASA Artemis I – Flight Day 19: Orion Prepares for Close Lunar Flyby, Teams Examining Power Conditioning Issue On Flight Day 19 of the Artemis I mission, Orion performed the second return trajectory correction burn on Sunday, December 4, at 10:43 am CST, using the …

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The Yellowstone Supervolcano Holds Way More Liquid Magma Than We Realized

The Yellowstone Supervolcano Holds Way More Liquid Magma Than We Realized

The Yellowstone supervolcano in northwest Wyoming isn’t just one of the most fascinating places on Earth, it’s potentially one of the most volatile, thanks to the reservoir of magma contained within. A new study by an international team of researchers has determined that there is actually more magma under Yellowstone than was previously thought, adding …

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'Great scientific step forward': Construction of the world's largest radio observatory is finally under way

‘Great scientific step forward’: Construction of the world’s largest radio observatory is finally under way

An artists’ impression of SKA-Low antenna arrays.Credit: DISR After 30 years of planning and negotiations, construction begins this week on the Square Kilometer Array (SKA), the world’s largest radio-astronomy observatory. The giant instrument — to be built across sprawling sites in Australia and Africa — will collect the radio signals emitted by celestial objects and …

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Where did Earth's oxygen come from?  A new study hints at an unexpected source

Where did Earth’s oxygen come from? A new study hints at an unexpected source

The amount of oxygen in the Earth’s atmosphere makes it a habitable planet. Twenty-one percent of the atmosphere consists of this life-giving element. But in the deep past — as far back as the Neoarchean era 2.8 to 2.5 billion years ago — this oxygen was almost absent. So, how did Earth’s atmosphere become oxygenated? …

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