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1. www.science.org › content › articleThere’s liquid water on Mars—but it’s too deep to access

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   Aug 12, 2024 · Millions of years ago, Mars was a wet planet. Is any of that water left? For decades, scientists have been going back and forth and back again on the answer to that question. Now, thanks to NASA’s Mars InSight lander (pictured), a team says there really is flowing H 2 O—but it’s buried more than 11 kilometers deep. Between 2018 and 2022 ...

2. astrobiology.nasa.gov › news › water-on-mars-theWater on Mars: The Story So Far | News | Astrobiology

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   Oct 18, 2016 · The young planet Mars would have had enough water to cover its entire surface in a liquid layer about 140-meters deep. But it is more likely that the liquid would have pooled to form an ocean occupying almost half of Mars’s northern hemisphere, and in some regions reaching depths greater than 1.6 kilometres. ESO/M. Kornmesser.

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4. science.nasa.gov › missions › hubbleNASA’s Hubble, MAVEN Help Solve the Mystery of Mars’ Escaping ...

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   Sep 5, 2024 · Mars was once a very wet planet as is evident in its surface geological features. Scientists know that over the last 3 billion years, at least some water went deep underground, but what happened to the rest? Now, NASA’s Hubble Space Telescope and MAVEN (Mars Atmosphere and Volatile Evolution) missions are helping unlock that mystery. […]

5. www.nasa.gov › news-release › nasa-research-suggestsNASA Research Suggests Mars Once Had More Water Than Earth’s ...

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   Mar 5, 2015 · The research team was especially interested in regions near Mars’ north and south poles, because the polar ice caps hold the planet’s largest known water reservoir. The water stored there is thought to capture the evolution of Mars’ water during the wet Noachian period, which ended about 3.7 billion years ago, to the present.

6. www.universetoday.com › 168848 › how-did-mars-becomeHow Did Mars Become Uninhabitable? - Universe Today

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   Oct 10, 2024 · Mars, the fourth planet from the Sun, has been known to be a fairly hostile world devoid of any signs of life. ... The wet-dry cycling suggests an alternating climate between more and less ...

7. www.nasa.gov › missions › mars-science-laboratoryNASA’s Curiosity Finds Surprise Clues to Mars’ Watery Past

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   Feb 8, 2023 · Mount Sharp is made up of layers, with the oldest at the bottom of the mountain and the youngest at the top. As the rover ascends, it progresses along a Martian timeline, allowing scientists to study how Mars evolved from a planet that was more Earth-like in its ancient past, with a warmer climate and plentiful water, to the freezing desert it is today.

8. People also ask

   Was Mars a wet planet?

   • Mars was once a very wet planet as is evident in its surface geological features. Scientists know that over the last 3 billion years, at least some water went deep underground, but what happened to the rest? Now, NASA's Hubble Space Telescope and MAVEN (Mars Atmosphere and Volatile Evolution) missions are helping unlock that mystery.

   NASA’s Hubble, MAVEN Help Solve the Mystery of Mars’ Escaping Water

   science.nasa.gov/missions/hubble/nasas-hubble-maven-help-solve-the-mystery-of-mars-escaping-water/

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   What if Mars had water?

   • The young planet Mars would have had enough water to cover its entire surface in a liquid layer about 140-meters deep. But it is more likely that the liquid would have pooled to form an ocean occupying almost half of Mars’s northern hemisphere, and in some regions reaching depths greater than 1.6 kilometres. ESO/M. Kornmesser

   Water on Mars: The Story So Far | News | Astrobiology

   astrobiology.nasa.gov/news/water-on-mars-the-story-so-far/

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   Did Mars have a climate with liquid water?

   • NASA’s Curiosity rover has found new details in Mars’s Gale crater which helps explain how the Red Planet went from one with a climate with liquid water to the inhospitable place it is today. Artist’s concept of an early Mars with liquid water on its surface. Credit: NASA/MAVEN/The Lunar and Planetary Institute.

   How Mars became uninhabitable: Curiosity investigates - Cosmos

   cosmosmagazine.com/space/exploration/curiosity-mars-uninhabitable/

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   Why does Mars have more water than Earth?

   • A primitive ocean on Mars held more water than Earth’s Arctic Ocean, according to NASA scientists who, using ground-based observatories, measured water signatures in the Red Planet’s atmosphere. Scientists have been searching for answers to why this vast water supply left the surface.

   NASA Research Suggests Mars Once Had More Water Than Earth’s Arctic

   www.nasa.gov/news-release/nasa-research-suggests-mars-once-had-more-water-than-earths-arctic-ocean/

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   Why is Mars a water reservoir?

   • The research team was especially interested in regions near Mars’ north and south poles, because the polar ice caps hold the planet’s largest known water reservoir. The water stored there is thought to capture the evolution of Mars’ water during the wet Noachian period, which ended about 3.7 billion years ago, to the present.

   NASA Research Suggests Mars Once Had More Water Than Earth’s Arctic

   www.nasa.gov/news-release/nasa-research-suggests-mars-once-had-more-water-than-earths-arctic-ocean/

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   How many years ago did Mars have water?

   • “With this work, we can better understand the history of water on Mars.” Perhaps about 4.3 billion years ago, Mars would have had enough water to cover its entire surface in a liquid layer about 450 feet (137 meters) deep.

   NASA Research Suggests Mars Once Had More Water Than Earth’s Arctic

   www.nasa.gov/news-release/nasa-research-suggests-mars-once-had-more-water-than-earths-arctic-ocean/

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9. cosmosmagazine.com › curiosity-mars-uninhabitableHow Mars became uninhabitable: Curiosity investigates - Cosmos

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   Oct 9, 2024 · And liquid water, it turns out, was pretty widespread on the planet. ... But the wet period on Mars is believed to have ended about 3 billion years ago. Today, Mars is frigid and inhospitable.