This video breaks down why K2-18b has suddenly become one of the most important planets in the search for life beyond Earth.

Two major alien-life announcements in 2025 generated enormous excitement, but most astrobiologists remained unconvinced. Only 6.6% of surveyed experts thought possible biological molecules on K2-18b ...

Gone are the days when the search for life beyond Earth was confined to science fiction movies or spirited debates. Now, thanks to dramatic advances in astronomy, biology, chemistry, and geology, ...

One of the greatest mysteries of life is whether we are alone in the cosmos. The laws of probability suggest we aren’t, but ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The Department of Defense (DOD) released a new batch of documents ...

LOS ANGELES (AP) — What was once considered fringe or conspiratorial has in recent months popped up everywhere from the White House to the Catholic Church, as public fascination with unidentified ...

Elon Musk has raised concern about the lack of evidence of extraterrestrial life, prompting questions about why humanity has ...