4 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. Credit: NASA/GSFC. For decades, abundant research has suggested that rivers, lakes and seas once covered Mars billions of years ago.

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,...

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. The data from NASA’s Insight lander allowed the scientists to estimate that the amount of groundwater could cover the entire planet to a depth of between ...

2024年8月12日 · Data from a retired NASA mission has revealed evidence of an underground reservoir of water deep beneath the surface of Mars, according to new research. A team of scientists estimates that...

2025年1月25日 · Images of Mars taken from orbit show thousands of mounds in a region sculpted by water billions of years ago. A robotic mission may investigate the area one day.

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.

5 天之前 · Curiosity Rover Spots Ancient Water Ripples on Mars, Hinting at a Past With Shallow, Ice-Free Lakes. The 3.7-billion-year-old formations in the planet’s Gale Crater suggest the presence of long ...

4 天之前 · These warm, wet periods would have been driven by Mars losing water from its atmosphere to the ground, which ironically refilled the hydrogen content of the atmosphere, thus sustaining the ...