There are two golf balls sitting on the moon.
721
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
A comet's tail always points away from the sun.
2
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Jupiter is bigger than all the other planets combined.
254
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
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
It would take more than 150 years to drive a car to the sun.
569