That misalignment means the tidal bulges pull on the Moon gravitationally, which gradually speeds up the Moon’s orbit. When ...

What’s different about this 10-day test flight is not only that it returns astronauts to the vicinity of the moon for the ...

Spending months in orbit does not just test muscles and bones, it appears to physically rearrange the human brain. New ...

Astronomers have long searched for clues that a hidden companion star sits out of view near the red supergiant star ...

Small but mighty, the red planet — our celestial neighbor — has made Earth’s climate what it is today. Mars’ gravitational ...

With a synchronized tap from run-of-the-mill hammers on metal plates resting on the ground, researchers kneeling in nine ...