The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
More than 20 million meteoroids enter Earth's atmosphere every day.
139
The Earth gets 100 tons heavier every day due to falling space dust.
673
It takes eight and a half minutes for light to get from the sun to earth.
159
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
The earth travels through space at 660,000 miles per hour.
189