Breathtaking Photos of Mars Terrain Hint at a Mysterious Cyclic Past

A newly released image from a Mars satellite offers a glimpse into the complex past of the now dry and dusty world. From high above the surface of Mars, the orbiting High Resolution Imaging Experiment (HiRISE) homes in on the Danielson Crater, just north of the Mars equator. This region is intensely interesting to space … Read more

Tonga undersea volcano eruption released up to 18 megatons of energy

Scientists are starting to take the measure of the monster volcanic eruption that rocked the South Pacific kingdom of Tonga earlier this month. The undersea volcano had been burbling since late December 2021, shaking the seas near Tonga with a series of outbursts. Things kicked into higher gear this month, with powerful blasts on Jan. … Read more

Antarctic ‘Megaberg’ Released 152 Billion Tons of Freshwater Just Before Melting

Scientists have been keeping a close eye on the ‘megaberg’ designated as A68a since it split off from Antarctica back in July 2017 – and new research highlights just how much freshwater it’s released into the ocean during its late melting process.   Satellite monitoring systems indicate that for three months at the end of its … Read more

Stunning, Otherworldly Images of Mars Captured by China’s Mars Orbiter

High above the red planet, China’s Mars orbiter Tianwen 1 has captured a series of incredible, alien images of our neighboring planet. The shots were captured by a small camera that was deployed by Tianwen 1. Released on New Year’s Day, they show Tianwen 1, looking lonely above the red planet, as well as Mars’ … Read more

Toxic gas released by ancient microbes may have worsened Earth’s largest mass extinction

Dominik Hülse, an Earth system modeler based at University of California Riverside, worked on a November 2021 study that explored how ancient microbes may have prolonged the Permian extinction by producing a toxic gas. Here, Hülse poses with a finger to his nose to highlight the toxic “rotten egg” scent of hydrogen sulfide. (Image credit: … Read more