There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
There are two golf balls sitting on the moon.
721
Summer on Uranus lasts for 21 years.
358
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
It would take more than 150 years to drive a car to the sun.
569
It 'snows' metal on Venus.
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
Mars had an oxygen-rich atmosphere around 4 billion years ago
13