A breathtaking astronomical timelapse simulation explores what a full day looks like from the surface of various planets, ...

Given the size and age of the universe, it should be full of species with technology far more advanced than our own. But so far there is no trace ...

The Pentagon on Friday released a new batch of documents and images related to UFOs, the fifth disclosure in recent months ...

This Dec. 2023 photo provided by Pablo de Vicente shows a radio telescope at Yebes Observatory in Yebes, Spain. (Pablo de Vicente via AP) The majority of Search for Extraterrestrial Intelligence ...

Image of ALMA's DV-59 antenna in the foreground with multiple other antennas observing the sky. Credit: ALMA. Confirming the existence of extraterrestrial intelligence via radio signals, also called ...

Astronomers may have been listening for alien civilizations in only a small slice of the radio spectrum while overlooking a largely unexplored range of higher frequencies. Using archived data from the ...

The SETI high-frequency alien signal search is moving into a part of the radio spectrum that scientists have barely explored. Instead of listening only near frequencies long considered logical for ...

Researchers are using ALMA data to search radio bands that have been largely unexplored for alien signals.

Most alien-signal searches listen to a narrow part of the radio spectrum, but astronomers are now testing higher frequencies that have barely been explored. A first search using archived ALMA ...

The search for alien radio signals has spent decades listening in a familiar part of the spectrum. A first-of-its-kind survey now suggests that unexplored higher frequencies could widen the hunt, ...