Discovery of earth-like extra-solar planets

As of December 2, 2010, 505 extra-sols planets were detected. Most are giant planets (like Jupiter), but recently several relatively lightweight exoplanets, only a few times more massive than Earth, have also been detected, thu...

Life-form thriving on arsenic was discovered on Earth

NASA-funded research discovered microorganisms on Earth (in Mono Lake, California), able to thrive and reproduce using the toxic chemical arsenic. According to NASA, this finding of an alternative biochemistry makeup will alter...

Accumulating evidence that life is or was possible on Mars

A growing number of scientists tend to think that Mars habits (or was habiting) some forms of life, following a variety of recent discoveries that support the assumption that life is or was possible there. It is not considered ...