Researchers confirm that chemicals present in the dust of the Red Planet are highly toxic to bacteria.

NASA researchers have discovered ancient microbes locked inside minerals, suggesting a possible niche for interstellar life.

September 2015's selection of notable quotes

May 2015's selection of notable quotes

Mounting and drilling a comet, mind-controlled gene expression, and dissecting cat genomes

Researchers pinpoint a distant planet that may be the right size and temperature to support liquid water and life.

A body of liquid water beneath Enceladus’s surface makes the tiny moon a potentially hospitable home for extraterrestrial life.

In the book's prologue, author David Waltham compares a fictitious planet to Earth, highlighting the biologically supportive luck that our planet has enjoyed.

Geobiologist Roger Summons analyzes organic material in rocks found deep inside Earth, looking for evidence of how life originated and evolved on our planet—and possibly on Mars.
 

Reconsidering the uniqueness of life on our planet