'Planet killer' asteroids are hiding in the sun's glare. Can we stop them in time?
When you buy through nexus on our site , we may earn an affiliate commission . Here ’s how it work . On the morning of Feb. 15 , 2013 , a meteor the sizing of a semitrailer shot out from the focus of the rising sunlight and exploded in a fireball over the city of Chelyabinsk , Russia . in brief radiate brighter than the sun itself , the meteor explode with 30 times more energy than the bomb calorimeter that ruin Hiroshima , set off some 14 miles ( 22 kilometers ) above the footing ....