A comet's tail always points away from the sun.
2
More than 20 million meteoroids enter Earth's atmosphere every day.
139
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
11
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
Venus is the only planet that rotates clockwise.
310
Astronauts cannot burp in space.
232
41% of the moon is not visible from earth at any time.
103