The light hitting the earth right now is 30 thousand years old.
163
The population of the Earth has more than doubled since 1950.
151
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219