The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
The light hitting the earth right now is 30 thousand years old.
163
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
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
Mars had an oxygen-rich atmosphere around 4 billion years ago
13