perchlorate salts tagged posts

Mars: Oxygen-rich, Life-supporting liquid water?

Hubble Space Telescope photo of Mars taken when the planet was 50 million miles from Earth on May 12, 2016. Credit: NASA, ESA, the Hubble Heritage Team (STScI/AURA), J. Bell (ASU), and M. Wolff (Space Science Institute)

Hubble Space Telescope photo of Mars taken when the planet was 50 million miles from Earth on May 12, 2016.
Credit: NASA, ESA, the Hubble Heritage Team (STScI/AURA), J. Bell (ASU), and M. Wolff (Space Science Institute)

Model describing conditions under which oxygenated water could exist on Mars challenges traditional beliefs about planet’s habitability. A team led by scientists at Caltech and the Jet Propulsion Laboratory (JPL), which Caltech manages for NASA, has calculated that if liquid water exists on Mars, it could – under specific conditions – contain more oxygen than previously thought possible. According to the model, the levels could even theoretically exceed the threshold needed to support simple aerobic life.

That finding runs contrary to the current, accepted view of Mars and i...

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What makes liquid water on Mars possible?

Dark, narrow streaks on Martian slopes such as these at Hale Crater are inferred to be formed by seasonal flow of water on contemporary Mars. The streaks are roughly the length of a football field. Credit: NASA/JPL-Caltech/Univ. of Arizona

Dark, narrow streaks on Martian slopes such as these at Hale Crater are inferred to be formed by seasonal flow of water on contemporary Mars. The streaks are roughly the length of a football field. Credit: NASA/JPL-Caltech/Univ. of Arizona

Perchlorate salts, which may help on our JourneyToMars! Perchlorate absorbs water from the air.

Using an imaging spectrometer on MRO, NASA found hydrated minerals on slopes where mysterious streaks are seen on Mars. One thing that researchers noticed was that the darkish streaks appear to ebb and flow over time. During warm seasons, they darken and then fade in cooler seasons. When discovered in 2010, these downhill flows known as recurring slope lineae (RSL) were thought to be related to liquid water...

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