Blue Ghost moon lander lowers its orbit

Chances an asteroid may hit Earth in 2032 have again risen, though the risk remains tiny, astronomers say. Here's what to ...
The moon's orbit is elliptical, or oval-shaped, meaning as its distance from our planet changes, its apparent size changes, ...
Understand the moon phases and you can wager a pretty good guess for when the next full moon is no matter where we are in the ...
The head of planetary defense at the European Space Agency discusses 2024 YR4, an asteroid with a small chance of striking ...