Over 4.6 billion years ago, Earth took shape from a spinning cloud of dust and gas surrounding the young sun. Tiny particles ...

Although the rocks that record the earliest parts of Earth’s history have been destroyed or deformed over time by more than four billion years of geology, scientists can use modern rocks, moon samples ...

"We came all this way to explore the moon, and the most important thing is that we discovered the Earth." — astronaut Bill Anders. At one point in Apollo 8's lunar orbit, the Earth came into ...

When teachers explain ocean tides, they frequently describe how the moon's gravity pulls on Earth ... and the Coriolis effect (caused by Earth's rotation) also affect where and to what extent ...

In our oceans, the moon’s gravity pulls more strongly on the near side of Earth, producing a bulge; inertia from Earth’s rotation produces a second one to balance the first. Instead ...

Look at how the Earth's tilt changes how much sunlight the northern hemisphere receives. The Moon is always a sphere but you may have seen different shapes of Moon in the sky. These are called the ...