NASA’s Perseverance rover has delivered its most compelling clue yet in the search for life on Mars. A rock sample called “Sapphire Canyon,” taken from the Bright Angel formation in Jezero Crater, ...

Reaction–diffusion systems form a foundational class of mathematical models that describe how the concentration of one or more chemical substances distributed in space changes under the influence of ...

“Astrobiological claims, particularly those related to the potential discovery of past extraterrestrial life, require extraordinary evidence,” cautioned Katie Stack Morgan, project scientist for ...

The most exciting rock known to science is a school-desk-sized chunk of mudstone currently stuck on Mars. Formed from fine, water-washed sediments on the floor of a long-lost lake—some 3.5 billion ...