Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
4
Astronauts get taller when they are in space.
224
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Pluto is smaller than Russia.
9
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
Summer on Uranus lasts for 21 years.
358