Summer on Uranus lasts for 21 years.
358
The light hitting the earth right now is 30 thousand years old.
163
MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
18
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
Jupiter is bigger than all the other planets combined.
254
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
Mars had an oxygen-rich atmosphere around 4 billion years ago
13