Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
The earth travels through space at 660,000 miles per hour.
189
Sound doesn't travel in space.
255
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5
