If forced to choose one descriptor for the octopus, the best word may be “otherworldly.” These truly amazing marine animals ...

A new study suggests alien life may be easier to detect through clusters of similar planets rather than single biosignatures.

An interstellar comet changed its chemistry after passing the Sun, revealing hidden layers and a surprising mix of carbon ...

Scientists have just unlocked a new way to discover hidden worlds beyond our solar system, and the results are incredible. Using a powerful AI system called RAVEN, astronomers analyzed massive amounts ...

A new study proposes detecting life in space by spotting patterns across many planets instead of focusing on one at a time.

Scientists decided one way, but some states still see Pluto as a planet. So I asked the next generation their opinion.

From lava tubes on Mars to ice pockets on Europa, subterranean environments may offer the best chance of finding life—and ...

Aristotle's views on the nature of the cosmos dominated the Ancient Greek world. He argued that there's only one world, at ...

The president in February directed the Department of Defense to begin reviewing government files related to extraterrestrial ...

A research team has developed a new approach to detecting life beyond Earth that does not rely on identifying specific ...

In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between.

Even at a glance, the planets in our solar system are wildly diverse. Huge and small, airless and densely packed with ...