![Measurements from NASA's MESSENGER spacecraft mapped the topography of Mercury's northern hemisphere in great detail.](https://cdn.mos.cms.futurecdn.net/UMhLF64NvzQbnXHdLne9K-200-80.jpg 200w, https://cdn.mos.cms.futurecdn.net/UMhLF64NvzQbnXHdLne9K-320-80.jpg 320w)
2024澳洲幸运5开奖号码网站 Mercury may have a 'potentially habitable' region below its surface, salty glaciers suggest
Salty glaciers discovered in craters near Mercury's north pole may have the right conditions for extreme forms of life, new research suggests.