On June 22, 2000, NASA announced possible evidence of present-day liquid water on Mars.
Scientists analyzed data from NASA's Mars Global Surveyor spacecraft and found what appeared to be gullies formed by flowing water. They also found debris and mud deposits these flows may have left behind. Spacecraft on and around the planet had already seen evidence that vast oceans of water existed on Mars a long time ago, but researchers have yet to confirm that liquid water still exists on the planet today. They have, however, found water ice at Mars's north and south poles. Gullies and other dark streaks on the Martian surface known as recurring slope lineae look like they might contain super-salty water brine, but so far no real data has confirmed the presence of liquid water anywhere on the Martian surface.
Scientists analyzed data from NASA's Mars Global Surveyor spacecraft and found what appeared to be gullies formed by flowing water. They also found debris and mud deposits these flows may have left behind. Spacecraft on and around the planet had already seen evidence that vast oceans of water existed on Mars a long time ago, but researchers have yet to confirm that liquid water still exists on the planet today. They have, however, found water ice at Mars's north and south poles. Gullies and other dark streaks on the Martian surface known as recurring slope lineae look like they might contain super-salty water brine, but so far no real data has confirmed the presence of liquid water anywhere on the Martian surface.
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TechTranscript
00:00On this day in space.
00:04In 2000, NASA announced possible evidence of present-day liquid water on Mars.
00:08Scientists analyzed data from NASA's Mars Global Surveyor spacecraft
00:12and found what appeared to be gullies formed by flowing water.
00:16They also found debris and mud deposits these flows may have left behind.
00:20Spacecraft on and around the planet had already seen evidence that vast oceans
00:24of water existed on Mars a long time ago, but researchers have yet to confirm
00:28that liquid water still exists on the planet today.
00:32They have, however, found water ice at Mars' north and south poles.
00:36Gullies and other dark streaks on the Martian surface known as recurring slope lineae
00:40look like they might contain super salty water brine, but so far no real data
00:44has confirmed the presence of liquid water anywhere on the Martian surface.
00:48And that's what happened on this day in space.
00:52NASA Jet Propulsion Laboratory, California Institute of Technology