What does evidence of existing lake on Mars mean for life beyond Earth?

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What does evidence of existing lake on Mars mean for life beyond Earth?
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researchers have found evidence of what they believe is an existing Lake on Mars it’s it’s under the planet South polar ice cap and is about 20 km across National Geographic who joins us today from Montreal Andrew thank you so much for taking the time we know that previous research has found possible signs of intermittent liquid water flowing on the surface of Mars but this is apparently virus and the first sign of a persistent body of water on the red planet so what is your reaction to this the key ingredients for Life as we understand it here on our planet is liquid water and to have a body of liquid water currently existing on Mars protected from radiation Underground underneath a very sick one and 1/2 km thick glacial deposit near the South Pole of Mars This bodes very well for potentially a location where microbial life may exist currently so we’ve been a lot over the years about finding evidence of past life on Mars but this may be of a great spot to look for current Life on Mars okay and you know when you talk about polar ice caps talk about water liquefying where you thought there wouldn’t be any water kind of reminds you of our own planet and climate change what scientists have been saying about what’s happening to Earth so does this have any indication on what’s happening with Mars’s climate well this is the big the big puzzle they’re trying to understand a lot of the missions that we have on Mars right now in orbit and on-the-ground Rovers and Landers that are that are on their way currently even Tamar’s are all trying to put together a piece of what happened Mars Mars once was much more habitable in terms of its environments much more Earth-like had a thicker atmosphere had bodies of water liquid water on its surface it was maybe even a very watery Planet billions of years ago but something went wrong with the of the planet and because it’s so close to Earth and we share the same Heritage the same birth four and a half billion years ago it’s this will have direct impact the knowledge of that we’re getting about the current climate of marzen pieced together that ancient history of what’s happening on with Earth today and what could happen in the future and a Saturn and particularly can you tell us a little bit more about what we’re learning from those photos of planets have undergone what’s called opposition in the last 2 months meeting that they are visible at its closest and brightest in Earth’s skies and Hubbell is trained is team Vision on both of these planets showcasing globally the weather patterns both of these planets recent spacecraft to Mars and Saturn but the only see little parts of the planet at any one time it’s only Hubble that allows us to see the entire globe of these planets at one time and this showcases for scientists of the global patterns on Mars for instance there’s currently a global dust storm that’s raging there and Hubbell allows us to really analyze over long-term through these images of what the what’s happening with their climates over over a global scale very quickly were also seeing Saturn’s rings the gaps in between them in particular why is that important we are and we are we are able to use these pictures these little pictures of a show is showing that Saturn’s rings are almost like really tilted towards the Earth so well in the last couple of months as it’s coming it’s closest that it does it every year show us the intricate details within the Rings and a and help us understand of how they remain stable over millions of years thank you so much for sharing this with clear skies
Andrew Fazekas, a National Geographic Astronomy columnist, speaks about the signs of water on Mars and what it signals for life beyond Earth.

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