A comet's tail always points away from the sun.
2
Pluto is smaller than Russia.
9
If two pieces of metal touch in space, they become permanently stuck together.
808
According to a study by the National Science Foundation, only half of Americans believe in evolution, and one in 4 don't know that the Earth orbits the Sun.
14
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