SETI's 1977 "Wow!" signal from deep space was even stronger than originally thought, but its source remains a complete mystery.

The silence of our solar system has been broken by a celestial intruder, and space agencies are scrambling to understand the ...

I/ATLAS was first discovered on July 1, 2025, it has garnered much attention, including speculation, hopes and fears that it ...

Radio waves from Earth have been moving through space for more than a century. They did not start as part of any grand plan ...

Astronomers in Australia picked up a strange radio signal in mid-June — one near our planet and so powerful that, for a moment, it outshined everything else in the sky. The ensuing search for its ...

A 2019 study conducted by Lisa Kaltenegger and Jackie Faherty for Cornell University examined which nearby stars could detect ...

Astronomers could use specific radio signals from the universe's earliest epoch to "weigh" the first stars in the cosmos. The investigation could reveal more about the so-called Cosmic Dawn, the ...

A dead star located 15,000 light-years away, GPM J1839-10, has been pulsing every 22 minutes for decades, defying laws of stellar physics.

The search for extraterrestrial intelligence (SETI) has yet to detect alien technosignatures like radio waves, but the cosmos is vast, and there are plenty of places left to look. New research ...

MOUNTAIN VIEW, Calif. -- An unexplained blip picked up by a Russian telescope last year has the science world buzzing, as some think it could be a signal from a distant civilization sent nearly a ...

In Episode 8, while Zosia and Carol are looking through a telescope one night, Zosia explained that The Others have since learned the radio signal came from Kepler-22b.