Mars had an oxygen-rich atmosphere around 4 billion years ago
13
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
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
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
The sun is 330,330 times larger than the earth!
190