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 ...

A very rare treat is about to grace Earth's night skies.

Six planets will all be visible at once in the night sky this month, lined up across the sky—but one is set to disappear from view.

However, this year a powerful new telescope is coming online that could prove once and for all that there really is a ninth planet in our Solar System. The same year that Pluto was ignominiously ...

Here’s how it works. This month, six planets in the solar system — Mars, Jupiter, Uranus, Venus, Neptune and Saturn — will appear in Earth's skies in a "parade of planets." Although the dark ...