There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
8
Astronauts cannot burp in space.
232
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 Earth gets heavier each day by tons, as meteoric dust settles on it.
118
Venus is the only planet that rotates clockwise.
310