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NASA's Curiosity rover is continuing to help scientists piece together the mystery of how Mars lost its surface water over the course of billions of years.
The rover drilled into a piece of Martian rock called Cumberland and found some ancient water hidden within it. Researchers were then able to test a key ratio in the water with Curiosity's onboard instruments to gather more data about when Mars started to lose its water, NASA officials said. In the same sample, Curiosity also detected the first organic molecules it has found. Mission scientists announced the discovery in a news conference today (Dec. 15) at the American Geophysical Union's convention in San Francisco, where they also unveiled Curiosity's first detection of methane on Mars.
"It's really interesting that our measurements from Curiosity of gases extracted from ancient rocks can tell us about loss of water from Mars," Paul Mahaffy, Curiosity's SAM (Sample Analysis at Mars) instrument principal investigator at NASA's Goddard Space Flight Center in Greenbelt, Maryland, said in a statement.
The water was mineralized, molecularly bound, not liquid. It's quite well established that there was abundant water on Mars long ago. That opens the possibility that life may have existed but it doesn't have much to do with the present.
So here is some news of water found on mars, which means there may be life on mars as well.
originally posted by: FormOfTheLord
Here is an astrobiologist Richard Hoover who found evidence of extraterrestrial life in meteorites.
Astrobiologist Richard Hoover spent more than forty six years working at NASA. In that time, he established the Astrobiology Research Group at the NASA/Marshall Space Flight Center, and became internationally known for his research on microfossils in meteorites. Hoover has published many papers in which he asserts the discovery of extraterrestrial life in meteorites.
Hoover no longer works for NASA, but he continues his controversial research and is currently an astrobiologist at Athens State University and a visiting research professor with the Centre for Astrobiology at the University of Buckingham. Hoover discussed his research in a lecture at the 2014 International UFO Congress. At the event, Hoover sat down with journalist Lee Speigel of the Huffington Post. Speigel asked Hoover to explain what it is that convinces him that life is not restricted to Earth. Hoover responded, "I am absolutely convinced that life is not restricted to the planet Earth because I have found the remains of lifeforms that are absolutely, conclusively extraterrestrial."
"If you look at the microscope photos, they are certainly suggestive – looking like photos made of various terrestrial bacteria," Shostak told SPACE.com. "But then again, while intriguing, that's hardly proof. If similarity in appearance were all it took to prove similarity in kind, then it would be pretty easy for me to demonstrate that there are big animals living in the sky, because I see clouds that look like them."
The type of microbe Hoover claims to have discovered has also provoked some scientists' skepticism.
Cyanobacteria live in liquid water and are photosynthetic, meaning they convert carbon dioxide into organic compounds using energy from sunlight. That implies that the meteorites would have had to contain liquid water exposed to sunlight, and also that high concentrations of oxygen would be present, said astrobiologist Chris McKay of NASA's Ames Research Center in Moffett Field, Calif.