Here’s what you’ll learn when you read this story: The Search for Extraterrestrial Intelligence (SETI) focuses on finding technosignatures—potential signs of alien technology. If we look carefully, we ...

A new study has identified a potentially record-breaking haul of transiting exoplanets, thanks to a machine learning ...

Scientists have discovered unexpected water-ice clouds on a distant, Jupiter-like exoplanet, challenging current atmospheric ...

Planets orbiting stars beyond the solar system come in all shapes and sizes but mostly fit into a few categories: large and hot gas giants, super-Earths that are slightly larger than our planet, ...

NASA has uncovered major new clues on Mars that could point to alien life. The space agency’s rover has found chemicals on the Red Planet that are widely considered the key ingredients for ...

For decades, the search for alien intelligence has revolved around the question: if someone out there is listening, how could they hear us? A new study combining data from Penn State and NASA’s Jet ...

In a new study, researchers from Penn State and NASA’s Jet Propulsion Laboratory analyzed human deep space communications and found that human transmissions are frequently directed toward our own ...

Billions of stars in our Milky Way galaxy have captured rogue alien planets that once cruised freely through interstellar space, a new study suggests. Many wandering alien worlds, which were ejected ...