Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Only 55% of Americans know that the sun is a star.
986
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
Astronauts get taller when they are in space.
224
Mars had an oxygen-rich atmosphere around 4 billion years ago
13