European scientists are turning an aircraft into a laboratory that simulates lunar gravity to prepare astronauts and ...

It is true that crewed missions to the moon are expensive, difficult, and dangerous. And we now have a long history going back decades of reliable, dependable, capable robotic exploration, including ...

Workers using an overhead crane lower the second stage of a Delta II launch vehicle toward the first stage for mating at NASA's Space Launch Complex 17B in Florida, on May 10, 2011. The payload ...

When the Moon first formed, it was a sea of molten lava. The immense gravity of Earth stretched this molten sea, raising tides on both the near and far sides. But the Moon was spinning, and that ...

Anyone who has seen the movies of Neil Armstrong's first bounding steps on the moon couldn't fail to be intrigued by his unusual walking style. But, contrary to popular belief, the astronaut's ...