Though Pluto has formally been considered a dwarf planet for almost two decades, it still has many lessons left for planetary scientists — including hints about how the solar system formed.
It's not unusual for countries to restrict satellite images of sensitive locations. But in the case of Israel, a U.S. law seeks to protect an entire — and separate — country.
The famed naturalist and broadcaster beat out actress Jennifer Aniston for fastest time to reach one million followers on Instagram, according to Guinness World Records.
