Trump mulls a land attack on Venezuela after admitting he sent in the CIA. Does this mean war? Millions march against Trump in 'No Kings' rallies as the government shutdown drags on. Plus John Bolton ...

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...

Quasi-moons are not real moons and don't actually orbit the Earth, although they sometimes appear to do so for short periods of time, Phil Nicholson, professor of astronomy at Cornell University, told ...