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Scientists More Hopeful Than Ever That Perseverance Has Already Found Life on Mars
Oxytropidoceras posted a topic in Fossil News
Scientists More Hopeful Than Ever That Perseverance Has Already Found Life on Mars by Carly Cassella, Space, Science Alert, January 29, 2024 THe open access paper is: Paige, D.A., Hamran, S.E., Amundsen, H.E., Berger, T., Russell, P., Kakaria, R., Mellon, M.T., Eide, S., Carter, L.M., Casademont, T.M. and Nunes, D.C., 2024. Ground penetrating radar observations of the contact between the western delta and the crater floor of Jezero crater, Mars. Science Advances, 10(4), p.eadi8339. Yours, Paul H.-
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Could things that look like fossils trick us thinking there was once life on Mars? If you want to believe, fake Martian fossils might convince you (but they're just rock formations). By Elizabeth Rayne, SYFY, November 30, 20221 McMahon, S. and Cosmidis, J., 2021. False biosignatures on Mars: anticipating ambiguity. Journal of the Geological Society. An Entomologist Claims That Mars Is Covered in Bug-Shaped Things, And He Has 'Proof' Yours, Paul H.
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Perseverance Rover Lands Safely - Will Search for Ancient Life on Mars
Oxytropidoceras posted a topic in Fossil News
NASA Lands the Perseverance Rover on Mars The science mission will launch the first drone to fly on another planet, attempt making oxygen in space, and search for signs of ancient life. Sarah Scoles, Wired, February 18, 2021 NASA's Perseverance rover landing on Mars, PBS Yours Paul H.-
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The rock in the image was actually found on Mars. I know it's probably not a fossil as NASA has addressed this saying it was likely formed by water and wind erosion. Please don't take this post the wrong way. I am not interested in perpetuating anything unscientific. I am just curious about the topic; how we can analyze rocks like these found on another planet. If one were on the team, and we spot something like this, to the untrained eye it would look like an astonishing find. But we have to be objective, and we have no idea what fossils on Mars might look like, in the unlikely case they actually exist. So I am just wondering how an expert would look at them? Aside from the low probability that such a fossil would exist, are there tell tale features that it is not a fossil. Thanks!
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"Martian" mineral builds mounds and might preserve fossils
Oxytropidoceras posted a topic in Fossil News
Strange 'martian' mineral mounds rise up from Utah's Great Salt Lake By Tom Metcalfe https://www.washingtonpost.com/national/energy-environment/rare-salt-formations-appear-along-the-great-salt-lake/2020/01/10/5b581e9c-33e5-11ea-971b-43bec3ff9860_story.html https://www.space.com/martian-mineral-mounds-rise-utah-salt-lake.html https://www.lite1065.com/2020/01/16/rare-martian-mineral-mounds-appear-in-utahs-great-salt-lake/ What rare environmental mounds at Great Salt Lake could teach us about Mars. Utah geologists document spring mounds for first time By Amy Joi O'Donoghue, Deseret News, January 7, 2020 https://www.deseret.com/utah/2020/1/7/21055472/great-salt-lake-rare-environmental-mounds-could-teach-us-about-mars Other publications: Schubert, B.A., Lowenstein, T.K. and Timofeeff, M.N., 2009. Microscopic identification of prokaryotes in modern and ancient halite, Saline Valley and Death Valley, California. Astrobiology, 9(5), pp.467-482. http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.714.5959&rep=rep1&type=pdf https://pdfs.semanticscholar.org/14ac/33a1fb626040f3019947bfe95903ebe46d99.pdf Yours, Paul H. -
The search for extra-terrestrial fossils is looking more promising. But, I suppose one mustn’t get one’s hopes too high. NASA's Mars 2020 Will Hunt for Microscopic Fossils “Scientists with NASA's Mars 2020 rover have discovered what may be one of the best places to look for signs of ancient life in Jezero Crater, where the rover will land on Feb. 18, 2021. A paper published today in the journal Icarus identifies distinct deposits of minerals called carbonates along the inner rim of Jezero, the site of a lake more than 3.5 billion years ago. On Earth, carbonates help form structures that are hardy enough to survive in fossil form for billions of years, including seashells, coral and some stromatolites — rocks formed on this planet by ancient microbial life along ancient shorelines, where sunlight and water were plentiful. The possibility of stromatolite-like structures existing on Mars is why the concentration of carbonates tracing Jezero's shoreline like a bathtub ring makes the area a prime scientific hunting ground.” “Mars Scientists Investigate Ancient Life in Australia Could Mars ever have supported life? In the Australian Outback, scientists from NASA's upcoming Mars 2020 mission and their counterparts from the joint European-Russian ExoMars mission visited the oldest convincing evidence for life on Earth to prepare for their own searches for signs of ancient life on Mars. The field lesson in astrobiology in the Pilbara region is being applied in the near term by NASA, ESA and Roscosmos for mission planning, and will also pay dividends when both rovers begin to send back science data and imagery from the Red Planet. Credit: NASA/JPL-Caltech Also see: A field guide to finding fossils on Mars. (open access paper)
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A field guide to finding fossils on Mars. (open access paper)
Oxytropidoceras posted a topic in Fossil News
McMahon, S., Bosak, T., Grotzinger, J.P., Milliken, R.E., Summons, R.E., Daye, M., Newman, S.A., Fraeman, A., Williford, K.H. and Briggs, D.E.G., 2018. A field guide to finding fossils on Mars. Journal of Geophysical Research: Planets.vol. 123, no. 5, pp. 1020-1040 https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2017JE005478 McMahon, S., The chemistry of fossilization on Earth and Mars. http://www.portlandpresspublishing.com/sites/default/files/biochemist/Biochemist Space issue Dec 2018/BioDEC18_chemistry of fossilization pg 28.pdf Yours, Paul H. -
NASA's Mars Rover INSIGHT to Land on Mars Today
DeepTimeIsotopes posted a topic in Members' News & Diversions
Today at around 3pm EST, NASA's Mars Rover, INSIGHT, will be landing on Mars. This probe is designed to study the interior of Mars using seismological data it will gather. It will land in a very flat plain called Elysium Planitia. There it will drill a hole ~16 feet (~5 meters) down to insert a seismometer which will record seismic movements in Mars's interior. For more info on the mission: https://www.nytimes.com/2018/04/30/science/mars-insight-launch.html More info on landing a probe: https://www.space.com/42528-insight-mars-6-minutes-terror.html The schedule of events today: https://www.nasa.gov/press-release/nasa-brings-mars-landing-first-in-six-years-to-viewers-everywhere-nov-26 Live feed of the landing: https://www.nasa.gov/multimedia/nasatv/index.html#media