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1. • • Evidence suggests Mars could very well have been teeming with life billions of years ago. Now cold, dry, and stripped of what was once a potentially protective magnetic field, the Red Planet is a kind of forensic scene for scientists investigating whether Mars was indeed once habitable and, if so, when.
     news.harvard.edu/gazette/story/2024/10/mars-may-have-been-habitable-much-more-recently-than-thought/

     Mars may have been habitable much more recently than thought

2. People also ask

   Could Mars have been Earth-like?

   • Billions of years ago, when life emerged on Earth, the climate of Mars could have been Earth-like as well, with a thicker atmosphere than today and oceans of liquid water. A study funded by NASA and international partners indicates this period could have lasted longer than originally thought.

   NASA-Funded Study Extends Period When Mars Could Have Supported …

   www.nasa.gov/solar-system/nasa-funded-study-extends-period-when-mars-could-have-supported-life/

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   Does Mars have a climate like 3 billion years ago?

   • “Discerning the climate of Mars approximately three billion years ago is challenging because the Martian surface features do not seem to fully support either a warm and wet or cold and dry climate during that time,” said Michael Way, co-lead author of the paper at NASA’s Goddard Institute for Space Studies, New York.

   NASA-Funded Study Extends Period When Mars Could Have Supported …

   www.nasa.gov/solar-system/nasa-funded-study-extends-period-when-mars-could-have-supported-life/

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   What happened to life on Mars?

   • As the martian interior cooled, leading theories hold, its magnetic field died out, leaving the atmosphere undefended and ending this warm and wet period, when the planet might have hosted life. But researchers can’t agree on when that happened.

   Mars had long-lived magnetic field, extending chances for life - Science

   www.science.org/content/article/mars-had-long-lived-magnetic-field-extending-chances-life

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   How long is the habitable period on Mars?

   • Scientists want to know the duration of the habitable period; the longer it was, the more time there would have been for any potential Martian life to form. The new work extends the potentially habitable period on Mars by about 500 million years, into the late Hesperian age.

   NASA-Funded Study Extends Period When Mars Could Have Supported …

   www.nasa.gov/solar-system/nasa-funded-study-extends-period-when-mars-could-have-supported-life/

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   Did Mars have a sea 3.7 billion years ago?

   • The Eridania basin of southern Mars is believed to have held a sea about 3.7 billion years ago, with seafloor deposits likely resulting from underwater hydrothermal activity. This graphic shows estimated depths of water in that ancient sea. (Image credit: NASA)

   Life on Mars could have thrived near active volcanoes and an ancient

   www.space.com/mars-volcanically-active-4-billion-years-search-for-life

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   Did early Mars have tectonic activity?

   • Early Mars may have been more tectonically and volcanically active than previously thought. Evidence of tectonic activity around 4 billion years ago was provided by 63 new examples of various volcanoes found in a strange region of Mars with odd properties that set it apart from the rest of the Martian highlands.

   Life on Mars could have thrived near active volcanoes and an ancient

   www.space.com/mars-volcanically-active-4-billion-years-search-for-life

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3. www.nasa.gov › solar-system › nasa-funded-studyNASA-Funded Study Extends Period When Mars Could Have ...

   www.nasa.gov › solar-system › nasa-funded-study

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   Feb 2, 2022 · Billions of years ago, when life emerged on Earth, the climate of Mars could have been Earth-like as well, with a thicker atmosphere than today and oceans of liquid water. A study funded by NASA and international partners indicates this period could have lasted longer than originally thought.

4. interestingengineering.com › space › mars-habitableNew clues reveal Mars supported life 3.9 billion years ago

   interestingengineering.com › space › mars-habitable

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   3 days ago · Their new paper in Nature Communications shows that Mars’ magnetic field, which could have supported life, might have lasted until about 3.9 billion years ago. This is later than the estimated 4 ...

5. Top stories

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     Nasa discovers mysterious green spots on Mars that could be signs of alien life

     Scientists believe "Bright Angel" is where an ancient river once flowed, feeding the Jezero Crater with fresh water billions of years ago. The Jezero Crater ...

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6. Videos

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     1:56

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     What Mars Looked Like Billions of Years Ago

     13 Nov 2013

     100.9K views

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     12:27

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     A Natural History of Mars

     9 May 2023

     1.2M views

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     1:36

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     What Mars may have looked like 4 billion years ago

     19 Nov 2013

     32.4K views

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7. www.popsci.com › mars-habitableMars was probably habitable for longer than we thought

   www.popsci.com › mars-habitable

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   Jun 2, 2017 · Today, a new analysis of the rover’s findings reveals the red planet had the physical, chemical, and energetic ingredients to support life between 3.8 and 3.1 billion years ago....

8. me.mashable.com › space › 47535Past life on Mars? Here's what new NASA evidence points to.

   me.mashable.com › space › 47535

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   Oct 9, 2024 · Scientists have sought life on Mars since the first spacecraft touched down on its surface in 1976. Mounting evidence from robotic explorers, especially from Curiosity and its twin Perseverance, has shown the Red Planet to have once been warmer and wetter, perhaps more than 3 billion years ago. The rover pair had a highly productive summer ...

9. www.science.org › content › articleMars had long-lived magnetic field, extending chances for life

   www.science.org › content › article

   Dec 20, 2022 · Debunked claims from the 1990s that the meteorite contained fossilized bacteria made the 2-kilogram rock notorious, but researchers study it even today because at 4.1 billion years old, it is the only known pristine sample to record this critical era of Mars’s history.

10. www.space.com › mars-volcanically-active-4-billionLife on Mars could have thrived near active volcanoes and an ...

    www.space.com › mars-volcanically-active-4-billion

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    Feb 12, 2024 · New evidence that Mars was volcanically active around 4 billion years ago could provide more places to hunt for signs of ancient life on the Red Planet.