The sun, Earth and the moon are aligned, but because the moon’s orbit is not exactly in the same plane as Earth’s orbit around the sun, they rarely form a perfect line. When they do ...

Thanks to the Moon’s orbit around Earth, the angle of sunlight hitting the lunar surface and being reflected back to our planet changes. That creates different lunar phases. The next Full Moon ...

Five of the brightest planets will be visible to the naked eye. With help, you may even spot Uranus and Neptune.

The moon takes about 29½ days to revolve around the Earth, which is called a lunar ... since the moon’s orbit around the is consistent enough that time can be measured without calendars.

So what do they all mean? The "super" part refers to the moon's orbit, which brings it slightly closer to Earth this month, ...

That's because the asteroid's risk corridor or area of uncertainty around Earth will shrink as astronomers can better define its orbit. But as long as Earth remains in that estimated hazard area ...

Scientists measured a chorus wave emerging from an unexpected place, and confirmed a key piece of a theory about how these ...

Stars are constantly leaking particles, borne by a stellar wind; these stream out and, where they encounter planetary magnetic fields, become entrapped, forming vast belts in toroidal formation around ...

NASA’s Juno spacecraft has uncovered an immense volcanic hot spot on Jupiter’s moon Io, surpassing any previously recorded ...

4: 6:14 p.m., Cold Moon The moon travels around the Earth in an oval-shaped orbit, called an ellipse. When a full moon coincides with the point in the moon's orbit that's the closest to the Earth ...

The extraordinary formations, each comparable in size to Earth’s Grand Canyon, are hidden on the far side of the moon — the side that always faces away from Earth — near the lunar south pole ...