Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...
That's good news for NASA, which is looking to land astronauts at the south pole on the near, Earth-facing side later this ...
The moon's ascending node (the point in the sky where its orbit crosses the ecliptic from south to north) is moving westward ...
"With an orbital period of 570 days, it is a relatively cold gas giant planet," said Guðmundur Stefánsson of the University of Amsterdam in a statement. This orbital period places it a little closer ...