Mercury joins the night sky to complete a 7-planet alignment just after sunset for the end of February. Saturn leaves our ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but get a telescope and you can spot Neptune and Uranus.

Want to see a destination from the best vantage? Up the altitude. Here are the top spots from which to appreciate the Eternal ...

Titan is the only moon in our solar system with a significant atmosphere. Now we have a very good idea of how this dense ...

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