Search for Life

"Of the other small planets like Earth that are out there, which of them have Jupiter siblings? Because this might be an important characteristic to look for, if we want to figure out where to find life."

A jaw-dropping ecosystem of crystal-clear lagoons and salt plains in Argentina's Puna de Atacama desert could offer a window onto early life on Earth and Mars.

The United States Congress passed legislation that orders the release of governmental records pertaining to UFOs dating back 25 years.

A new study calls for humanity to prepare for an encounter with extraterrestrial intelligence and examines the social consequences of such contact.

Humpback whale "conversations" provide valuable insight on how humans may one day communicate with life beyond Earth.

Is there life beyond Earth? The question has turned out to be one of the hardest to answer in science.

An astronomer has outlined a way for methane-producing life to thrive in the molecular clouds of deep space, opening up a new pathway to understanding the potential origins and diversity of life.

Last summer, Harvard professor Avi Loeb claimed tiny pellets of iron came from beyond our solar system. But new analyses suggest that they likely originated much closer to home.

A new U.S. Space Force publication says that to operate safely in space, Guardians need to know exactly what is in orbit and where it came from —  but anomalous objects show that it's no easy task.

Researchers are taking seriously the idea that our first evidence of life elsewhere in the cosmos may come in the form of alien technology.