Dark, narrow streaks on Martian slopes such as these at Hale Crater are inferred to be formed by seasonal flow of water on contemporary Mars. The streaks are roughly the length of a football field. | NASA/JPL-Caltech/Univ. of Arizona

Portable DNA Sequencer Searches for Life in Extraterrestrial-Like Conditions

During tests in the Canadian Arctic, a portable DNA sequencer searched for microbes in conditions like those thought to exist on Enceladus, Europa, and Mars.

A DNA sequencing run being carried out with the Oxford Nanopore MinION (on right) at the McGill Arctic Research Station in the Canadian Arctic. | Dr. Jackie Goordial (McGill University/Bigelow Laboratory for Ocean Sciences)