1. The human body contains enough DNA to stretch from the sun to Pluto and back again. 17 times.
2. Microbes colonize human bodies, outnumbering human cells 10 to 1. David Trauffer, a fourth year chemical engineering student at Bucknell University describes this fact in a social media post as, “A little bit cool, a little bit disgusting, but pretty interesting.”
3. Estimates for the number of stars in the Milky Way range from 100 billion to 300 billion. The known universe is estimated to contain billions of galaxies. John Johnson, assistant professor of planetary astronomy at Caltech told the school’s publication: “There’s at least 100 billion planets in the galaxy—just our galaxy.”
4. When helium is cooled to absolute zero (-460 degrees Fahrenheit, -273 degrees Celsius, the lowest temperature possible), it becomes a super liquid. It defies gravity, with the ability to rise up along the inside of a container and spill over while the container is upright.
5. Betelgeuse is an old star that could explode any moment from the red super giant stage to supernova. When it does, the people of Earth could have two months of continuous light.
Betelgeuse is the red star to the right. (Shutterstock)
*Image of DNA via Shutterstock