Debris thrown into the atmosphere by the space rock, rather than chemicals, was most likely responsible for killing off many species.
From
To
When scientists examined the rocks, they determined it belonged to one of two known types of primitive meteorites.
By Matt Maloney, Special to The Conway Daily Sun
Earlier this year, NASA accomplished a mission that took more than 12½ years to carry out. ESA, the European Space Agency, and NASA sent a spa…