The intriguing chemistry of a rock collected by the Perseverance rover could trace to microbial activity — or not.

An arrowhead-shaped rock on Mars sporting features that may hint at ancient microbial activity on the Red Planet has left ...

A close up of the Mars rock of interest, showing where the poppy seeds and leopard spots are found. | Credit: J.A. Hurowitz et. al. An arrowhead-shaped rock on Mars sporting features that may hint ...

The image features a snow leopard expertly camouflaged within a snowy, rocky landscape. Viewers find it challenging to locate the leopard at first gla ...

Vivienne Parry with the science behind Kipling's stories. Can a leopard change its spots? Readings by Samuel West. From 2013. Show more Chemist Andrea Sella and biologist Buzz Baum explain why a ...