Scientists basically agree that an asteroid struck the Earth some 65 million years ago and its impact created the Chicxulub crater in Yucatan, Mexico. More controversial is the link between this ...

Once characterized, the fullerenes were found to be a perfect match for those found at the KT impact site – as well as with those found in meteorites – and those observed in interstellar space by ...

Climate change had little to do with the demise of the dinosaurs, but the last million years before their extinction had a complex pattern of warming and cooling events that are important to our ...

Furthermore, many predictions of future impact hazards are in error, since they are based upon the earlier, inaccurate dust estimates for the K-T impact. For example, the often cited 1:20,000 risk of ...