Earth Survived 2 Close Calls With Supernovas
At least two ancient supernovas scattered radioactive debris across Earth and lit up the sky for humanity's early ancestors.By Steven Sparkman | April 6, 2016
Earth has survived several close calls with supernovas.
New research in Nature shows strong evidence that Earth was bombarded by debris from supernova explosions at least twice in the past 10 million years.
Both explosions were too far away to do much damage, but they might've had unknown effects.