Surprisingly enough, the moon is a piece of our planet. The moon is weird. It's completely unlike anything else in the solar system. So how did our planet end up with such a special moon? The answer ...

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 ...

Though decades have passed since the Space Race took place, Earth’s moon remains the only place beyond our planet where humans have set foot. As the brightest and largest object in our night sky, the ...

Timing is everything these days. Our communications and GPS networks all depend on keeping careful track of the precise timing of signals—including accounting for the effects of relativity. The deeper ...

The European Space Agency’s Juice mission made two historic firsts this week on its long journey to study the potential habitability of Jupiter’s icy moons. The Juice, or Jupiter Icy Moons Explorer, ...