Space blindness is a serious side effect of spending prolonged periods in space. How will scientists solve the problem in time for the expedition to Mars?
What does SOS mean? Many believe that it means Save our Souls or Save this Ship, but it is an offshoot of the system of Morse code. Read this history
How do lobsters communicate? With no vocal cords, the options are limited. Fortunately, they’re blessed with two bladders in their heads and can release jets of potent urine to get their message across.
Is it possible to regrow teeth? Up until recently, dentures and implants were the only way. But soon, medieval dentistry might be history.