After 10 minutes, the rotating arm would reach the moon’s escape velocity of 2.4 km per second—about one-sixth of Earth’s escape velocity—to set the capsule on the correct trajectory for ...

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 ...

Narrator: Our moon is on the move. Each year, it drifts an estimated 1.5 inches further away from Earth. And in the process, Earth's rotation is actually slowing down. What if one night ...

Experiments suggest an unusual magnetic material could help harness energy from Earth’s rotation. But not everyone is ...