Recent scientific research has unearthed an intriguing proposition that Earth may have once been orbited by two moons instead ...

Over 4.6 billion years ago, Earth took shape from a spinning cloud of dust and gas surrounding the young sun. Tiny particles within this cloud collided and clumped together, driven by gravity and ...

Early Earth lacked life’s essentials until a collision with Theia added them. This chance event made life possible. After the ...

Astronomers have made an astounding discovery, finding a new ‘moon’, or quasi-moon, that has been following Earth for over ...

The moon's orbit isn't a perfect circle. Instead, it's more stretched out, kind of like an oval, which means its distance from Earth varies by about 30,000 miles (48,000 km). The surface of the moon ...

This was an unexpected and coincidental discovery of a small, icy, egg-shaped planet in the outermost reaches of our solar ...

So the bottom line is that the gravity of the closer tidal bulge on the Earth is pulling the Moon forward, which increases ...

Astronomers have discovered what they think may be another moon orbiting a distant dwarf planet called Quaoar. This small, ...