How Many Planets Are There in the Solar System? There are 8 planets in our solar system. The planets orbit the Sun in ...

Earth could be thrown off its orbit either into another planet or the sun, new research has warned. New research from Durham ...

Astronomers discovered that C/2014 UN271, a massive comet more than 10 times larger than any known comet, is emitting jets of ...

During the red giant phase, both the Sun and Jupiter will shine brighter and become hotter. However, its moon Europa is ...

Inner planets are the four planets closest to the Sun: Mercury, Venus, Earth and Mars. They are collectively characterized by a solid surface and small size relative to the outer gas giants.

We Earthlings see the sun every day of our lives—but gaining a truly new view of our star is a rare and precious thing. So ...

People always want to know what will happen to Earth when the sun eventually swells up as a red giant. For one thing, the expanding sun will turn the inner planets into cinders. It will almost ...

Read What are asteroids?Asteroids are rocky objects that orbit the Sun just like planets do. In fact, sometimes asteroids are ...

For decades it was thought that water was prevalent in the outer reaches of the Solar System early in its history, with comets and asteroids delivering moisture to Earth and the inner planets during ...