A 100-pound person on Earth would weigh 38 pounds on Mars.
102
The population of the Earth has more than doubled since 1950.
151
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
41% of the moon is not visible from earth at any time.
103
If two pieces of metal touch in space, they become permanently stuck together.
808
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
It takes eight and a half minutes for light to get from the sun to earth.
159
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221