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
If NASA sent birds into space they would soon die; they need gravity to swallow.
146
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
When a massive power outage struck southern California in the 1990s, Los Angeles residents reportedly called 911 to express alarm about strange clouds hovering overhead; they were seeing the Milky Way for the first time.
31
It would take more than 150 years to drive a car to the sun.
569