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BEIJING, March 2 (Xinhua) -- Scientists have discovered what they say may be the earliest fossils of organic matter living on Earth, foreign media reported.
tiny strips, blocks and tubes found on Canadian rocks date back 4.28 billion years.
this time was reported to be long after the formation of the Earth, but billions of years earlier than previously thought evidence of the oldest life on Earth.
researchers have published their findings in the journal Nature.
: Life Sciences majour Dodd, of University College England, who studied the fossils, believes the discovery could help understand the origins of life.
, "This discovery answers the biggest question that humanity has been asking: Where do we come from and why do we exist?" The oldest evidence of life on Earth, which is now recognised, is a 3.48 billion-year-old rock found in Western Australia.
Mashu Dodd said the organic matter came from a distant time, when Mars was thought to have shown liquid water, and Mars had an atmosphere similar to Earth's.
discovered on Earth at that time that life was born and evolved, then there is also the possibility that life could begin on Mars, " he said.
if that were the case, Dr. Papignio of the University College said nasa's recent probe on the Earth's surface may have been looking for signs of life in the wrong place.
report also said that the claim that life occurred "only" a few hundred million years after the birth of the Earth makes sense, as scientists are now debating whether life on Earth is a rare event or a common phenomenon when conditions are right.
source: ChinaNews.com.