So why would researchers believe that we might be from Mars? Researchers have discovered that an oxidized mineral form of the element molybdenum, which may have been crucial to the origin of life, could only have been available on the surface of Mars and not Earth. In addition, recent studies have shown that conditions suitable for the beginnings of life may still exist on the Red Planet.
"It's only when molybdenum becomes highly oxidized that it is able to influence how early life formed," said Steven Benner, one of the researchers, in a news release. "This form of molybdenum couldn't have been available on Earth at the time life first began, because three billion years ago the surface of the Earth had very little oxygen, but Mars did. It's yet another piece of evidence which makes it more likely life came to Earth on a Martian meteorite, rather than starting on this planet."
The origin of life has remained hotly debated among scientists. More and more theories have spawned concerning how the right conditions and chemical compounds managed to form the spark of life. This latest research, though, seems to indicate that the conditions were actually never right for life on Earth.
In fact, there are two paradoxes which make it difficult for scientists to understand how life could have started on Earth. The first is named the "tar paradox." All living things are made of organic matter, but if you add energy such as heat or light to organic molecules and leave them to themselves, they don't create life. Instead, they turn into something more like tar, oil or asphalt.
The findings reveal that we may actually come from Mars. That said, more research needs to be conducted. If true, though, it could be that we may actually have discovered life on Mars--right here on Earth.
The findings were presented at the Goldschmidt Conference on Aug. 29.
Source:
http://www.scienceworldreport.com/articles/9160/20130830/mars-origin-earths-life-begun-red-planet.htm
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