Some people have an extra bone in their knee (and it’s getting more common).
The human body literally glows.
The hottest spot ever recorded by a thermometer instrument on the ground is El Aziza, in Libya. The hottest spot recorded by remote sensing (satellite) is the Lut Desert and the temperature was measured at 159.3 degrees Fahrenheit.
Many feet bones don’t harden until you’re an adult.
The boiling point for water at the top of Mount Everest is about 154 degrees Fahrenheit.
Your average cumulus cloud weighs over 1 million pounds.
According to a 2015 study, sarcasm spurs creative thinking.
There are no muscles in your fingers: Their function is controlled by muscles in your palms and arms.
The Mars Helicopter Ingenuity is an engineering marvel. It is the first lightweight helicopter designed to fly in the atmosphere of another planet. The Martian atmosphere is much thinner than on Earth. Temperatures on Mars get as low as -130 degrees Fahrenheit. The first flight is scheduled to take place this week.
The average adult human has two to six pounds of bacteria in his or her body.