The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

According to NASA, this is around the time when the planet is closest to Earth, making it appear bigger and brighter. Mars is ...

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade ...

Starting up again Saturday, a sweeping view of our solar system will glow in the night sky. The planetary alignment, or a ...

Exciting February sky events include Venus at its brightest and closest to Earth, the moon occulting the Pleiades, and a parade of planets in the post-sunset sky.

Planetary alignments aren't rare, but they can be when they involve six of the eight planets in our solar system.

Venus, Jupiter, and Mars dominate the sky. Catch your last views of Saturn as early in the month, the Moon passes in front of ...

All month, four planets — Venus, Saturn, Jupiter and Mars — will appear to line up and be bright ... will appear within just ...

Worlds will align for a "planetary parade" in January, with four bright and easily visible to the naked eye. But an even ...

Four planets will be in the parade in January, while seven will align in February. Here's how to see the events.

Simpson and Chen ran mathematical models looking at how differently sized Earth-like worlds would have affected the rest of ...

With frigid temperatures and dangerously cold wind chills, you may want to wait a few more days to check them out. Don't ...