Scientists believe that the ancient Australian fossils could be the oldest evidence of life on Earth. If this is true, it will push back the current date believed to be the start of microbial life on the planet.
Researchers claim that that they may have uncovered what seems to be the oldest life on Earth embedded in rocks that survived for at least 3.7 billion years.
The oldest known fossil in the world has been found in Greenland by researchers and is believed to be 3.7 billion years ago, which is 220 million years earlier than the prior oldest known fossil found in Australia.
It may just look like any old rock, but a four-billion-year-old chunk of an ancient protocontinent that scientists recently discovered may reveal clues about how Earth's first continents formed.
Scientists recently discovered water in Moon rocks, and through chemical analysis they found that the amount of water in the Moon's rocky interior actually varies regionally - revealing clues about how water originated and was redistributed on the lunar surface.