The eight planets travel around the Sun at different speeds. These lines show us the paths they take which we call orbits. On a clear night from Earth we can sometimes see the five planets which ...

A six-planet alignment or parade will form an arc in the early night sky, peaking in it's visibility Jan. 17-18. We let you ...

If you wait a few hours after sunset, you’ll be able to spot the Red Planet Mars rising in the northeast. Mars will reach its closest to Earth in mid-January and will then rise around sunset.

their surfaces, argues a new research paper. There are hundreds of millions of planets around other stars in our Milky Way galaxy that may be habitable, argues a new research paper. These ...