Jesse Tarnas News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Mars pourrait abriter un écosystème microbien en sous-sol capable de survivre grâce à une activité chimique alimentée par la radioactivité.

Meteorites reveal that so long as groundwater is present, the Martian subsurface is habitable

Meteorites reveal that so long as groundwater is present, the Martian subsurface is habitable

May 7, 2021 New research suggests that the Mars underground has the right ingredients for present-day microbial life. Planetary scientist Jesse Tarnas of Brown University and NASA’s Jet Propulsion Laboratory led a new study on the possibility of microbial life beneath the surface of Mars. Here he is at the Kidd Creek Mine in Canada, sampling groundwater 1.5 miles (2.4 km) underground. Image via University of Toronto Stable Isotope Laboratory/ Jesse Tarnas. Has life ever existed on Mars? Could there still be life somewhere on the planet today? Those are still unanswered questions, but growi...

Searching for habitable environments on Mars Over the past few decades, scientists have discovered that Earth’s subsurface is home to hardy microbes known as extremophiles. In Canada’s Kidd Creek Mine, for instance, extremophiles have been found more than a mile beneath the surface, in water that hasn’t seen the light of day in over a billion years. As to how these tough creatures manage to survive without sunlight, they subsist on the byproducts of chemical reactions that occur when rocks come into contact with water. One such reaction is radiolysis, which occurs when radioact...