NASA and Arizona-based startup Katalyst launched a robotic spacecraft over the Pacific on Thursday on a mission to rescue an ...

Mars is the most tempting destination beyond Earth, but current technology still makes the trip dangerous and difficult.

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence ...

Harvard astrophysicist Avi Loeb, known for his controversial extraterrestrial theories, is now leading a new Trump ...

Avi Loeb, the newly appointed Chair of the UAP Science Council for the White House, Pentagon, FBI and intelligence agencies, ...

Harvard astrophysicist Avi Loeb argues 3I/ATLAS and other interstellar objects may hint at alien technology, drawing fame, ...

NASA has selected three companies to fly four robotic lunar lander missions worth nearly $600 million as part of its lunar ...

As part of plans to establish a lunar base, the space agency may send to the moon a spare test version of the rover — as well ...

Somewhere out there, a planet roughly the size of Earth may be orbiting a distant star in conditions that could support life.

Matter-antimatter annihilations produce about 10 billion times more energy per unit mass than chemical combustion (which ...

The Department of War has released the third tranche of records under PURSUE, the ongoing transparency initiative aimed at declassifying historical and contemporary files related to Unidentified ...

Steven Spielberg's "Disclosure Day" packs a hopeful message into its alien-centric story, and there's plenty to dive into about what the movie wants to say.