Excited for the August 21 eclipse? Visit our Eclipse 2017 page to explore the science, history, and myths of the event. The Curiosity team will be viewing the eclipse alongside NASA in Carbondale, Illinois. Follow us on Facebook for live videos, trivia, and interviews on the big day.
A 2012 study that collected samples from 60 belly buttons found almost 2,400 types of bacteria, with an average of 67 types per person. Most of these types were relatively rare -- that is, they were found in fewer than 10% of the belly buttons tested. In fact, not one type of bacteria was found in every belly button, but eight types are fairly common, showing up in more than 70% of the navel samples.