【】

Mars used to be a wildly different land.
Though the red planet is bone dry today, NASA's Curiosity rover recently rumbled by poignant evidence of an ancient watery world. The car-sized robot snapped an image of a unique rock that looks like its composed of stacked layers. Such a rock likely formed "in an ancient streambed or small pond," the space agency wrote.
Curiosity is winding up through the foothills of the three-mile-tall Mount Sharp, where it's encountering a place where these streams and ponds once carried red sediments through the landscape. Ultimately, some of these sediments were deposited in stacks.

And at lower elevations, there's clear evidence that Mars didn't just have ponds — it was warm and moist enough to harbor big lakes.
Related Stories
- How NASA's Venus probe will survive hell and make unprecedented discoveries
- NASA just inflated its new-age spaceship heat shield for Mars
- The mega-comet hurtling through our solar system is 85, yes 85, miles wide
- Why landing a spaceship on the moon is still so challenging
- If a scary asteroid will actually strike Earth, here's how you'll know
Curiosity's robotic sibling, the Peservance rover, is now journeying through the planet's Jezero Crater, a place NASA suspects contained a lake and river delta. Though the water is all gone today, the robot has specialized equipment intended to identify past hints of microbial life that could have potentially dwelled on a wetter, different Mars.
TopicsNASA
相关文章
- Amazon's Echo made controlling music with your voice easy-peasy, but its sound quality could be a lo2025-04-03
How Singapore companies are offering apartment viewings in VR
SINGAPORE -- For many homebuyers, picking a new apartment means going down an endless journey of sho2025-04-03Pokémon isn't dead, it's back as zombie burgers for Halloween
With talk of Pokémon Go's slow demise as the once insanely popular mobile game's users dwindl2025-04-03No facepaint required: 9 insanely easy makeup
Not everyone wants to put a ton of effort into their Halloween costume, but that doesn't mean we can2025-04-03Fyvush Finkel, Emmy winner for 'Picket Fences,' dies at 93
NEW YORK (AP) — Actor Fyvush Finkel, the plastic-faced Emmy Award-winning character actor whos2025-04-03Farmer stumbles across a brand new 'bus
About 95 million years ago, a bus-size and scaly-skinned sauropod dinosaur with a long tail and even2025-04-03
最新评论