Darkness caused by dino-killing asteroid snuffed out life on Earth in 9 months

After an asteroid struck at the end of the Cretaceous period, debris from wildfires filled the atmosphere and blocked sunlight across Earth, causing ecosystem collapse and extinctions.
http://dlvr.it/SGGx5b

Popular Content

Google’s Quantum Computer Unlocks a Strange New Realm of Matter

After Over 100 Years, Scientists Are Finally Closing In on the Origins of Cosmic Rays

UK Opts Out of Flagship Fund to Protect Amazon and Other Threatened Tropical Forests

What Lies Within? New Image From a Mysterious Galaxy Asks Big Questions