Florida fireballs lit up the night sky Sunday. The fireballs (aka meteors) were seen by more than 60 people in Florida. Coming after the huge meteor in Russia, there are new calls for an early warning system to protect the Earth from giant meteors and asteroids.
Astronomers have cataloged about 95 percent of the space objects wider than half a mile – those that could destroy civilization. But they have found less than 1 percent of the objects 100 feet across or larger, a class that includes the asteroid that flitted past Earth on Friday.
Rare tiger born in San Francisco Zoo is the first since 2008. Such zoo births are rare, and there are few as 400 Sumatran tigers left in the wild. This cub was born to a 9-year-old tiger, named Leanne.