Earth has a new friend — and it's been waiting for us to notice it for decades. In a new study published in the journal ...

Earth has a number of mini-moons and quasi-moons. Mini-moons are objects that orbit our planet. But they make for fickle fans: They tend to swing around Earth for only a matter of months. One example ...

Apophis will zoom safely past the Earth closer than the orbits of geosynchronous satellites on April 13, 2029. As well as the ...

Members of the Flat Earth Society claim to believe the Earth is flat despite scientists explaining how we know the Earth is round since the third century B.C.

Participants need to design a 'generation ship' capable of sustainable travel for over 250 years, transporting 500 to 1500 ...