With death closing in, NASA's Mars InSight Lander picked up a record-breaking Marsquake in May.
The first vagina-on-a-chip replicates the cellular environment of the vagina.
Male mason wasps have no venom, but they can still stab predators with their genitals.
What happens during the winter solstice? Here's why this day is the shortest day of the year, with the fewest hours of daylight. The winter solstice falls on Dec. 21 or 22 every year in the Northern Hemisphere.