While scouring a 50-million-year-old crater on Mars, the Curiosity rover stumbled upon a polygon-shaped pattern that sort of ...

The enigmatic orb has undergone extensive examination and DNA testing, enabling scientists to reveal its true origins ...

Scientists have discovered unexpected water-ice clouds on a distant, Jupiter-like exoplanet, challenging current atmospheric ...

Scientists reveal how waves behave on alien planets, from towering methane seas on Titan to nearly still lava oceans on ...

Starlight has been the key to finding thousands of exoplanets over the past decade, but researchers have found a new way to harness it in their hunt ...

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

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

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

A throwaway line about Vulcan sparked decades of debate, until one clever theory finally made it official canon.

Thousands of feet below the surface, the Antarctic seafloor is a time machine to another realm. Here’s how one scientist ...

Learn how a new model shows how waves form on alien oceans, revealing that gentle winds could create massive swells on Titan, ...

Earth" brought a shipload of xenomorphs and other space horrors, but hybrids may be the biggest mystery of the show so far.