Scientists have found microorganisms crawling over a sample retrieved from the 200 million-mile-distant asteroid Ryugu. But ...

Scientists have found what seems to be the oldest direct evidence of hot water flowing on Mars during its ancient past. The ...

A recent discovery made by scientists working with a sample of rock from outer space highlights one of the huge challenges ...

Japanese researchers developed a model to simulate early Earth's atmosphere, revealing how UV radiation and hydrocarbons ...

underscoring just how hard it is to probe off-Earth samples for evidence of extraterrestrial life. "The presence of terrestrial microorganism within a sample of Ryugu underlines that ...

Panspermia is the hypothesis that life can survive the transfer between planetary bodies as a secondary path for life to get ...

As the universe expands (as it does in a dark matter-dominated universe) the distance between us and all other stars ...

Instead, the microorganisms originated from Earth, indicating that the samples somehow got contaminated by our own pesky microorganisms, underscoring just how hard it is to probe off-Earth samples for ...