As scientists search for life beyond Earth, spacecraft need to avoid accidentally bringing organisms from our home planet to ...

While scouring a 50-million-year-old crater on Mars, the Curiosity rover stumbled upon a polygon-shaped pattern that sort of looks like a giant reptile had shed its skin across the planet’s surface.

NASA's Curiosity rover uncovered critical new samples, including a series of compounds planetary scientists consider building blocks for the origin of life on Earth ...

New detection method: Researchers found life organizes molecules in distinct statistical patterns, offering a new way to identify alien life without relying on Earth-specific chemistry. Fungus ...

A photo of a three-sided Martian "pyramid" has sparked discussions on potential advanced life on the Red Planet. Evidence of alien life or cosmic pyramid scheme? A documentary filmmaker sparked a ...

Here's why these new results are so encouraging for scientists.

Do aliens exist? Could Earth really be the only planet hosting intelligent life? Debates over the existence of extraterrestrials date back to the earliest Indigenous and western thought. The tools ...

NASA's Curiosity rover has identified more organic compounds on Mars as scientists strive to learn whether the Red Planet ever harboured life. Five of the seven diverse organic compounds, which were ...