One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
The population of the Earth has more than doubled since 1950.
151
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
More than 20 million meteoroids enter Earth's atmosphere every day.
139
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
The earth travels through space at 660,000 miles per hour.
189
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
A 100-pound person on Earth would weigh 38 pounds on Mars.
102