Some asteroids have other asteroids orbiting them.
131
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
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
It takes eight and a half minutes for light to get from the sun to earth.
159