Planets orbit their parent stars while separated by enormous distances – in our solar system, planets are like grains of sand in a region the size of a football field. The time that planets take to ...

In just a few days, Jupiter, Mercury and Venus will come together in the night sky in what is known as the Dance of the Planets. Michelle Starr is CNET's science editor, and she hopes to get you as ...

Look low in the west-northwest after sunset in late May, and you can watch Venus, Jupiter, and Mercury pirouetting through the tightest gathering of three naked-eye planets that the world will see ...

Add Yahoo as a preferred source to see more of our stories on Google. Illustration shows a sub-Neptune planet orbiting a yellow star. Whether this planet is puffy depends on its resonance. | Credit: ...

A Northwestern University astrophysicist has produced a stunning video of four planets dancing around their sun. The tantalizing planetary dance was made using observations over a 12-year period. The ...

Hundreds of extrasolar planets have been found over the past decade and a half, most of them solitary worlds orbiting their parent star in seeming isolation. With further observation, however, one in ...

Four Planets Now Performing Sky Dance at Dawn If you look closely at the eastern horizon just before sunrise for the next two weeks, you should notice the bright planets Venus and Jupiter. Look closer ...

It's prom season -- for the planets. Every couple of years, give or take, planets get together in the night sky in such a way that they seem to be aligned with each other. They seem to be, really -- ...