Since Earth is the only place in the cosmos where we know such technology has emerged, the history and trajectory of our planet are the best guides we have for theorizing about what to look for when ...

The TRAPPIST-1 star system could have habitable exoplanets. SETI Institute researchers recently looked for technology signals from those worlds.

A recently discovered comet, known as C/2023 A3 Tsuchinshan–ATLAS, will make its closest approach of Earth on Saturday.

The newly-discovered planet – called Barnard b – has at least half the mass of Venus and on it a year lasts slightly more than three Earth days ... researchers were looking for signals ...

[Archival Audio]: Pluto was a planet ... When we look at all those other planets out there, those other exoplanets, is there another Earth like us out there? We have these cycles in our lives ...

If our planet survives the transformation of our sun into a red giant, it may end up looking similar ... experts agree that ...

Most animals with monstrous appearances are relatively harmless to humans. Here's the truth behind creepy creatures like the ...

SALT LAKE CITY (ABC4) — Comet C/2023 A3 Tsuchinshan-ATLAS is currently passing Earth, providing dazzling photos for millions worldwide, including in Utah. While another comet could be on its way to ...

But planetary defense is real: while an increasingly advanced array of asteroid-hunting observatories diligently and ...

A major new report on the state of climate change paints a distressing picture for planet Earth, but it also points to some ...

Along the lunar orbital path, the point of closest proximity is known as perigee, which is when the moon is, on average, ...