1,783*: the number of peer-reviewed safety studies that GMO foods have undergone. Learn more about the research behind GMOs in this month’s Popular Science.
$550: how much it will cost you to build a drivable tank for your goldfish. So worth it.
16 years: how long this new prototype hormonal birth control implant is designed to last. A remote control lets users click the implant on or off, depending on whether they want to get pregnant at a certain time.
6: the number of vials U.S. federal labs found this month containing unauthorized samples of smallpox virus.
7: the number of new dwarf galaxies astronomers recently discovered.
8: the number of lenses on the telescope the astronomers used.
3.5 million: the number of guinea worm infections reported around the world annually in the 1980s.
17: the number of guinea worm infections reported around the world so far this year.
42 percent: the proportion of English words that are loanwords from other languages.
91 percent: similarity between the proteins found on the surface of dog tumors and on the surface of human tumors. The discovery helped researchers develop the first antibody therapy for canine cancer.
*This article originally stated, incorrectly, that there have been 1700 peer-reviewed safety studies. The correct number is 1783.