There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
The Earth gets 100 tons heavier every day due to falling space dust.
673
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
The heart of an astronaut actually gets smaller when in outer space.
216
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
A comet's tail always points away from the sun.
2