It takes eight and a half minutes for light to get from the sun to earth.
159
A comet's tail always points away from the sun.
2
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
Summer on Uranus lasts for 21 years.
358
Jupiter is bigger than all the other planets combined.
254
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
Astronauts cannot burp in space.
232