A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
The Earth gets 100 tons heavier every day due to falling space dust.
673
It would take more than 150 years to drive a car to the sun.
569
Some asteroids have other asteroids orbiting them.
131
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175