NASA's Director of Planetary Science, Jim Green, discusses the Jan. 20 2016 Astronomical Journal science paper that points to ...

There are eight official planets (sorry, Pluto) in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and ...

"What If is an epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a ...

The Sun, the planets, and all else that constitutes the solar system are hurtling toward the star Lambda Herculis, some 370 ...

For billions of years, it's kept our ... The solar system is approximately 4.6 billion years old. Astronomers believe that roughly 100 million years into its existence, the planets first began ...

A planet parade is when several of our solar system's planets are visible in the night sky at the same time. There will be six planets visible this time around, including Venus, Mars ...

January's sky brings a planet parade, Mars opposition, and the Quadrantid meteor shower. Enjoy Venus and Saturn's close ...

Saturn, always a favorite for viewers with telescopes because of its famous ring system ... astrophotography in our best beginner's telescope guide. The only bright planet that is out of the ...

Astronomers are on the hunt for a mysterious ninth planet, known as Planet Nine, which could change our understanding of the solar system. Is this hidden world real, or just a myth?

In the heat of the Mojave Desert, the world's largest solar generator is utilizing advanced heliostat technology to produce ...