New simulations reveal that the climate, atmospheric chemistry and even global photosynthesis would be dramatically disrupted by an asteroid collision ...

The main culprit is most likely the "impact winter," which was caused by massive release of dust, soot, and sulfur into the atmosphere, leading to extreme cold, darkness, and a collapse in global ...

The sulfur particles, on the other hand, ranked second to last because of their tendency to absorb sunlight at certain wavelengths rather than reflect it and its clumpiness. While diamond dust ...