08 October 2009

Big Ring Found Around Saturn


Saturn's biggest and never-been-seen before ring has been discovered.

The 'super-sized' halo was found by Nasa's Spitzer Space Telescope. To get a sense of its size it has a vertical height which is about 20 times the diameter of the planet, which is nine times the size of our planet. Furthermore, the entire volume of the ring could hold about one billion Earths.

The bulk of the ring starts about 3.7million miles from Saturn itself and extends outward about another 7.4million miles.

With it being so huge many will ask how come it was not seen before. This is because the ring is extremely diffuse and doesn't reflect much visible light but its dusty particles, despite being very cold, shine with infrared light, or heat radiation which Spitzer is able to see.

No comments:

Post a Comment