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

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

The joint European-Japanese mission is only the second survey of Mercury, the least explored planet in the inner solar system ...

Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you ...

Images captured by NASA's Solar Dynamics Observatory have revealed ... which could act as an early warning system for dangerous space weather. Earth's temporary asteroid friend last year was ...

The way people think of the Solar System has changed many times throughout history. Before the development of the telescope, these ideas were based on what could be seen with the naked eye.