【】
Our solar system is a dynamic, evolving realm of space.
A powerful camera aboard NASA's Mars Reconnaissance Orbiter — a satellite orbiting the red planet — spotted a relatively recent impact site on the Martian surface. The spacecraft detected a dark spot on the ground, and then the high-resolution camera (called the High-Resolution Imaging Experiment) snapped the detailed shot.
The impact, which is brand new in cosmic terms, likely formed between February 2006 and March 2014, noted the imaging team at the University of Arizona. For a size reference, the entire black and white image is under five kilometers, or some 3 miles, across. Blasted-out rays of material are clearly visible around the crater, which formed from a falling asteroid or meteorite.
Tweet may have been deletedSEE ALSO:If a scary asteroid will actually strike Earth, here's how you'll know
Compelling Mars photo shows Martian water flowed way more recently than we think
Scientists detect something really unexpected beneath Saturn's 'Death Star' moon
The mega-comet hurtling through our solar system is 85, yes 85, miles wide
Mars is absolutely covered in craters. NASA estimates there are over a quarter-million impact craters about the size of Arizona's famous Barringer Crater, which is some 4,000 feet across. And there are over 43,000 Martian craters larger than three miles wide.

Meanwhile, Earth has just around 120 known impact craters. That's because over hundreds of millions of years, different parts of Earth's surface have both been covered in lava or recycled as the giant plates that compose Earth's crust (tectonic plates) continually move rock below and back up to the surface. Mars isn't nearly geologically dead — marsquakes frequently occur there — but it's not nearly as active as Earth, a water-blanketed planet teeming with erupting volcanoes. On Mars today, there's little to wash away, or cover up, new craters.
One of Mars' most recent impact craters, then, might be visible for millions and millions of years.
TopicsNASA
相关文章

These glasses hide a fitness tracker on your face
The last time a company tried popularizing wearable tech embedded in glasses, most notably with Goog2026-09-11
The best gift ideas for horror fans
Everyone has a friend who knows not to run upstairs when they should be running out the front door. 。2026-09-11
Netflix's docuseries 'Haunted' has fans skeptical about the truth
“You call ‘em strays. They were disposable. Human life meant nothing and that’s wh2026-09-11
This video of Victoria Beckham dancing to the Spice Girls is all you want it to be
While Victoria Beckham has remained fairly silent on the possibility of reuniting with the Spice Gir2026-09-11
One of the most controversial power struggles in media comes to a close
One of the world's biggest media companies has been embroiled in a complex personal and professional2026-09-11
'Starlink: Battle for Atlas' review: Blissful, space
Starlink: Battle for Atlas is pure, blissful fun. The only thing that gets in the way is the physica2026-09-11


最新评论