Add Yahoo as a preferred source to see more of our stories on Google. Friday holds a special celestial treat in store for astronomers and amateur stargazers. Mercury will become the seventh planet to ...

All of our solar system’s planets are lining up in the night sky at once this week. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known as a great ...

It even has a small moon.

Add Yahoo as a preferred source to see more of our stories on Google. Get ready to look up at the Iowa sky because there will be a rare planet parade in the night sky to end February. A planet parade ...

A rare celestial event on Feb. 28 will offer skywatchers the chance to witness a "planet parade" of all seven planets in our solar system outside of Earth. It's the last time this type of planetary ...

The phenomenon known as a planetary parade is back as astronomers and stargazers prepare for what could be a dazzling display in the solar system this week. The planetary parade — what appears to be a ...