5 天之前 · NASA scientists have determined that a primitive ocean on Mars held more water than Earth's Arctic Ocean and that the Red Planet has lost 87 percent of that water to space. NASA/GSFC. About one-fifth of Mars was once underwater, raising the prospects for life.

Mars contains water, though mostly as subsurface permafrost. Surface water is readily visible at some places, such as the ice-filled Korolev Crater, near the north polar ice cap. Almost all water on Mars today exists as polar permafrost ice, though it also exists in small quantities as vapor in the atmosphere. [1]

2024年8月12日 · Scientists have discovered a reservoir of liquid water on Mars - deep in the rocky outer crust of the planet. The findings come from a new analysis of data from Nasa’s Mars Insight Lander, which...

2015年9月28日 · New findings from NASA’s Mars Reconnaissance Orbiter (MRO) provide the strongest evidence yet that liquid water flows intermittently on present-day Mars. Using an imaging spectrometer on MRO, researchers detected signatures of hydrated minerals on slopes where mysterious streaks are seen on the Red Planet.

2025年1月22日 · Discovering that Mars once had liquid water is a game-changer for our understanding of the planet and the broader possibilities of life beyond Earth. Water is a fundamental ingredient for life as we know it, so finding evidence of past liquid water raises exciting questions about whether Mars could have supported microbial life.

2024年8月12日 · Using seismic activity to probe the interior of Mars, geophysicists have found evidence for a large underground reservoir of liquid water — enough to fill oceans on the planet’s surface.

2024年8月12日 · Scientists Monday announced they've found evidence of liquid water on Mars -- which they say is buried deep underground in cracks several miles under the planet's surface.

2022年1月26日 · As the planet’s atmosphere thinned over time, that water evaporated, leaving the frozen desert world that NASA’s Mars Reconnaissance Orbiter (MRO) studies today. It’s commonly believed that Mars’ water evaporated about 3 billion years ago.

2015年9月28日 · New findings from NASA's Mars Reconnaissance Orbiter (MRO) provide the strongest evidence yet that liquid water flows intermittently on present-day Mars. Using an imaging spectrometer on MRO, researchers detected signatures of hydrated minerals on slopes where mysterious streaks are seen on the Red Planet.

17 小时之前 · The significance of finding water on Mars: 1. Potential for life: Water is an essential ingredient for life as we know it. If liquid water ever existed on Mars, then it means the planet might have ...