A supposed square structure spotted on Mars sparked speculation about alien archeological sites on the red planet. It's a fun ...

The enchanting dunescape stretches over 43 miles (70 km) along the coast and over 30 miles (50 km) inland. Lençois translates ...

Peering into WASP-121b also revealed more about the intensity of this alien realm. "The climate of this planet is extreme, and nothing like that of Earth,” Smith explained. "The climate of this ...

ALIENS could discover humans on Earth by spotting one of 12 signs, scientists say. Topping the list is a clue that could be ...

Earlier this week we got a new teaser for Alien: Earth, an upcoming FX series set in the expansive sci-fi universe. It shows ...

Winds circling a gas giant more than 500 light years from Earth have been detected flowing at supersonic speeds approaching 33,000 kilometers (20,000 miles) per hour, making them the fastest air ...

You can see a conception of the planet's strange orbit below. The outer planet is the super-Earth HD 20794 d, and the green region in space is this solar system's habitable zone. An illustration ...

Season 5 of Harley Quinn taps into DC Comics' cosmic history to pay homage to the home planets of classic heroes and villains ...

There are many places on Earth so weird they make you ... according to Lonely Planet. The Danakil Depression, Ethiopia, is one of the most inhospitable and alien places on Earth.