The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
The earth travels through space at 660,000 miles per hour.
189
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
In outer space there exists a gigantic cloud of alcohol which can be used to produce 400 trillion trillion pints of beer.
31
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175