Mars had an oxygen-rich atmosphere around 4 billion years ago
13
A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5
Today's top fuel dragsters take off with more force than the space shuttle.
120
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
It would take more than 150 years to drive a car to the sun.
569
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
Astronauts get taller when they are in space.
224
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118