Only 55% of Americans know that the sun is a star.
986
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
A comet's tail always points away from the sun.
2
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221