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

Earth’s sky is only one version of a cosmic phenomenon. Other planets offer skies filled with strange colors, thick ...

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

The subject of UFOs and aliens is vast and complex, making it impossible to summarize in one article. Flying saucers/UFOs made headline news throughout the world in 1947, sparked by two major, highly ...

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

Ancient Greeks believed in alien life, as well as in gods, souls, and beings that inhabited the Moon, stars, and Heavens.

Adria Arjona has landed a role in James Gunn's "Superman" sequel "Man of Tomorrow," TheWrap has learned. The role was rumored ...

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

The LHS 1903 system defies expectations with a rocky outer planet, prompting new ideas about how planets form and evolve.

For several days this month, Saturn, Mars, and Mercury appear just degrees apart before sunrise—close enough to watch their ...

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

Is the interstellar object 3I Atlas a "Trojan Horse" for alien technology? Harvard Astrophysicist Dr. Avi Loeb joins Tyrus to ...