The current prevailing idea is that extraterrestrial life would manifest itself as a unique and obvious signal, whether ...

Suppose there are signs of extraterrestrial life and we have not yet been able to detect them. What does that mean? In Nature ...

A provocative latest essay by Harvard astrophysicist Avi Loeb has reignited debate over whether interstellar objects passing ...

In his 1964 paper, "Transmission of Information by Extraterrestrial Civilizations," famed astrophysicist and radio astronomer ...

SpaceX’s proposed IPO could become the world’s biggest listing. Here are five key takeaways on AI ambitions, Starlink profits ...

The Trump administration released declassified UAP files featuring Apollo 12 and Apollo 17 photos and transcripts as part of the president's transparency initiative.

While the Catholic Church teaches nothing definitive on extraterrestrial life, over the centuries Catholic intellectuals have ...

How Radio Astronomy Helps Us See the Invisible Cosmos," astrophysicist Emma Chapman describes the hidden corners of space ...

CINCINNATI (WKRC) - A recent discovery indicates that the chemical building blocks necessary for life to form on Earth were actually "extraterrestrial in origin," according to scientists. A pair of ...

Jupiter's moon Europa may have the ingredients necessary for hosting life: liquid water, an energy source and organic compounds. NASA / JPL-CALTECH / SETI INSTITUTE Estimating the chance of getting a ...

President Trump is holding onto a speech detailing extraterrestrial life and spaceships, according to his daughter-in-law Lara Trump, who said the president is waiting for the right time to deliver it ...