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

On this day 35 years ago, NASA's Voyager 1 spacecraft took a picture that changed how we see our planet. The iconic "Pale ...

Neptune is one of the most mysterious planets in our solar system, with its deep blue color, intense storms, and extreme winds. When Voyager 2 flew past Neptune in 1989, it revealed jaw-dropping ...

Monroeville Public Library is holding a three-part children’s series on space, where participants learn fun facts about the ...

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in ...

This is the last time the seven planets will appear together in the night sky until 2040. Here's when it's happening – and ...

NASA has been monitoring a never-before-seen planet in its solar system, which is eight times the size of Earth.

According to a recent YouGov poll, 35% of Americans think Pluto is not a planet. But they are all wrong—kind of. To get to the bottom of whether Pluto is a planet, I tracked down planetary scientist ...

Towards the end of the month, Mercury appears in the evening sky, and climbs up past Saturn. In the dusk glow, you may be ...

you can detect the color of the planet but not much else. Neptune needs a telescope to be viewed and it is worth seeing its deep blue color. Pluto is way out there in the solar system and requires ...

Here are some of this month’s highlights. As we discussed last month, late January and early February will provide a stage for a Planet Parade, with six planets lining up in the night sky.

(The point at the end of the apsis is the aphelion). For some bodies, like all of the planets of the solar system, the difference between the perihelion and aphelion is quite negligible.