Mars Mystery

A stray rock_____ to Earth 11.000 years ago, 17 million years after its liberation from the surface of Mars.

Mars Mystery

A stray rock fell to Earth 11.000 years ago, 17 million years after its liberation from the surface of Mars. Some scientists thought that the meteorite bore evidence of microbial life - extraterrestrial bacteria - on ancient Mars.

Critics said the evidence for life was only circumstantial. As long as alternate explanations exist, a claim to have found the first indication of life anywhere but on Earth should require more definitive proof.
(Adapted from Newsweek)

1. Quanto tempo atrás foi o meteorito mencionado acima liberado de Marte?

Mars Mystery

A stray rock fell to Earth 11.000 years ago, 17 million years after its liberation from the surface of Mars. Some scientists thought that the meteorite bore evidence of microbial life - extraterrestrial bacteria - on ancient Mars.

Critics said the evidence for life was only circumstantial. As long as alternate explanations exist, a claim to have found the first indication of life anywhere but on Earth should require more definitive proof.
(Adapted from Newsweek)

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