The light hitting the earth right now is 30 thousand years old.
163
NASA invented baby food as we know it today.
7
MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
18
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
According to a study by the National Science Foundation, only half of Americans believe in evolution, and one in 4 don't know that the Earth orbits the Sun.
14
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9