The sun is 330,330 times larger than the earth.
75
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
In zero gravity, a candle's flame is round and blue.
16
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
The earth is approx. 6,588,000,000,000,000,000 tons.
175