-168°C to -34°C
606 miles (975 km)
Distance from the Sun:
257 million miles 9414m km)
Rotation about axis:
Revolution about Sun:
Scattered in orbits around the Sun are millions of pieces of rock left over from the dawn of the Solar System 4.6 billion years ago.
The combined mass of all these asteroids is less than the Earth’s Moon.
Half the mass of the belt is contained in four large asteroids, the largest of which is Ceres.
Recent discoveries have proved the existence of ice on many of these asteroids. It is possible that asteroids such as these hit Earth when it was forming, bringing water to our planet and essentially the building blocks of life.
The Invisible Universe
• Tonic water
• Food mixer
• Black light
This experiment used frozen tonic water. Tonic water contains a crystalline alkaloid called quinine which glows brightly under an ultraviolet light.
Ultraviolet light is a form of radiation which is not visible to the human eye. Its wavelength is in an invisible part of the electromagnetic spectrum.
Scientists and astrologers often observe the universe beyond what is seen just by using visible light.