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The seven planets orbiting the ultracool dwarf star TRAPPIST-1 are mostly rocky, with some potentially holding more liquid water than Earth.

A man visiting a North Carolina beach reportedly snagged a video of what he believed to be a shark swimming and splashing through shallow water.

Meteorites may hold new clues about the supernova explosions from which the stars and planets of our solar system formed.

The hole discovered in Russia’s International Space Station last week was likely deliberately drilled to destroy the mission, space agency officials said Tuesday.

The biggest meteorite and a few other notable artifacts survived the catastrophic fire that destroyed the National Museum of Brazil on Sunday.

In 1976, NASA's twin Viking landers touched down on Mars in an attempt to answer a weighty question: Is there life on the Red Planet?

Planet Nine is a huge alien world roughly four times the size of Earth that continues to evade astronomers – but it's not the only space mystery that has experts baffled.

Archaeologists in Egypt have uncovered a village with remains that predate the pharaohs by around 2,000 years.

That there is something lurking in the interstellar murk beyond Neptune is almost certain. Exactly what it is and where it is, we’re not so sure. If it truly is the elusive Planet Nine — the theorized planet lurking undiscovered in our solar system — it may take another thousand years before it swings back into view.

Stellar wombs in the constellation Carina bring new life to matter that once belonged to dead stars.

An incredible photo shows the Villarrica volcano in Chile lighting up a snowy sky.

A new study of fossilized teeth reveals that monster Jurassic-Era predators thrived in deep water more than 150 million years ago.

Chuck Yeager, the first man to break the sound barrier, weighed in on the controversy surrounding the upcoming Neil Armstrong biopic "First Man" and filmmakers' decision not to show the planting of the American flag on the Moon during the historic 1969 lunar landing.

Many people enjoy gazing at the night sky, and once in a while, something up there appears to look right back at us.

A moose drowned in a Vermont lake over the weekend after people trying to snap a picture of the animal crowded it and forced it into the water, wildlife officials said.

Brazil's National Museum has suffered catastrophic damages after a massive fire broke out on Sunday. Firefighters are working to salvage some of the artifacts inside the museum, which was once home to a 12,000-year-old skeleton, the oldest human remains ever found in the Americas.

Evidence for Planet Nine continues to mount, but there may be a good reason why scientists have yet to find it – it may be hiding.

MOFFETT FIELD, Calif. — Sending humans back to the moon won't require a big Apollo-style budget boost, NASA Administrator Jim Bridenstine said.

Firefighters in South Carolina have been praised for rescuing a hummingbird that was “exhausted and dehydrated,” Richburg Fire-Rescue wrote in an online statement.

A pod of endangered orca’s, native to the Pacific Northwest waters, have been seen taking turns floating the body of a dead calf that died over a week ago.