Science and Technology

There Might Be a Simple Reason We Haven't Found Life on Mars

Mars rovers tasked with hunting for traces of biology could roll over microscopic life forms without smelling a thing, simply because their instruments aren’t up to the task. A new study carried out in Earth’s oldest desert shows how current technology can’t always spot the signatures of life on our own planet’s surface. Let alone on Mars’s. The researchers behind the investigation argue without improving our ability to identify long-dead