Latest about Life's Little Mysteries
Where does the solar system end?
The location of the solar system's outer boundary is a point of contention among astronomers. There are three possible candidates, which "all have merit." But which one is best?
Why did the atomic bomb dropped on Hiroshima leave shadows of people etched on sidewalks?
The nuclear bombs dropped on Hiroshima and Nagasaki at the end of WWII left shadows of people on the ground and buildings. Here's why.
When were sea levels highest?
Sea levels were extraordinarily high during the last period of the dinosaur age. But ocean levels may have been even higher before that.
Are kale, broccoli and Brussels sprouts really all the same plant?
Have you ever heard of the plant Brassica oleracea?
Bismuth is so strongly repelled from magnets, it levitates. How?
The element bismuth can "float" between magnets due to magnetic levitation. What's the science behind this phenomenon?
Why do babies rub their eyes when they're tired?
Babies usually rub their eyes when they're tired, but why?
Have all 8 planets ever aligned?
The solar system's eight planets will never truly be in a straight line, but they can get close to it.
Why aren't all orbits circular?
Why do some celestial bodies have tadpole or even horseshoe-like orbits?
