What will happen to the Solar System?
Scientists believe that stars do not always remain the same. We believe our Sun and our solar system was formed by the collapse of a cloud of gas and dust in space 4.6 billion years ago. The Sun is now a middle aged star, with 9 planets and many other bodies near it in the solar system. In another 5 billion years, scientists think that the Sun will become much larger as energy from within makes the outer layers of the Sun expand, eventually becoming red giant. As this happens, most of the inner planets will be destroyed (including Earth). Eventually, after another 100 million years, the Sun will no longer be able to make energy, and will become a white dwarf, the size of a small planet.
Shop Windows to the Universe Science Store!
The Summer 2010 issue of The Earth Scientist
, available in our online store
, includes articles on rivers and snow, classroom planetariums, satellites and oceanography, hands-on astronomy, and global warming.
You might also be interested in:
Scientists believe that the solar system was formed when a cloud of gas and dust in space was disturbed, maybe by the expl osion of a nearby star (called a supernova). This explosion made waves in space...more
The solar system is made up of the Sun, the // Call the planets count function defined in the document head print_planet_count('planets'); planets and // Call the planets count function defined in the...more
Eris is a dwarf planet in our Solar System. Eris is a lot like Pluto, which is also a dwarf planet. Eris and Pluto are both very far from the Sun. They are both very, very cold. Eris was discovered in...more
Do you know what a planet is? Guess what... astronomers are not quite sure what a planet is! Mercury, Venus, Earth, and Mars are the planets closest to the Sun. They are definitely all planets. They are...more
Meteor showers are times when you can see a lot of meteors in one night. There are several different meteor showers. Each meteor shower happens at the same time every year. There is a meteor shower in...more
The Leonid meteor shower is one of several major meteor showers that occur on roughly the same date each year. The Leonids typically "peak" (are at their greatest level of activity) in mid to late November....more
A meteor shower is an astronomical event during which many meteors can be seen in a short period of time. Most meteor showers have a peak activity period that lasts between several hours and a couple of...more