Mercury, Venus, Mars, Jupiter, Saturn, Neptune and Uranus could be visible, but not all can be seen by the naked eye.

The shape of a planet's orbit is one of its fundamental properties, along with its size and distance from its host star.

Seven planets will align in a rare planetary parade, offering a view of five planets visible to the naked eye in the night ...

While all seven planets could appear in some form in parts of the U.S., not all of them will be visible to the naked eye.

Our grade school understanding of the Solar System may not take into account the constant discoveries being made in our ...

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

Together, these planets in the inspired water sign encourage us to make our dreams a reality. Venus is about to begin its ...

After Friday's spectacle, a "planet parade" of this size won't appear in the night sky for several years, experts say.

An alignment of seven planets will appear, whether by the naked eye or with the use of a telescope, this month in the U.S. Here's how to spot it.

This phenomenon known as a "planet parade," will feature Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune all ...

Astronomers and amateur stargazers will be in for a treat this week when a seventh planet will join six others in a planetary parade.