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

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

All of our solar system’s planets are lining up to parade through the night sky at once. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known ...

Mercury joins the night sky to complete a seven-planet alignment just after sunset for the end of February. Saturn leaves our view starting in March. Look up!

Mars, Jupiter, Uranus, Venus, Neptune, Mercury and Saturn will appear in a row on the evening of 28 February, marking the last time for 15 years that all of the planets will be visible at the same ...

Here's what to know. Despite what some reports suggest, the upcoming planetary alignment won't be all that special. The planets will appear to line up — but no more than usual. The planets in ...

Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that the next won’t happen until 2040.

DWPhoto/Getty Throughout January, planets Venus, Mars, Jupiter, Saturn, Neptune and Uranus will all be visible in the night sky. However, the best time to catch a glimpse of the planets will be on ...