What lies beneath

2019-03-06 01:20:19

By Marcus Chown EXOTIC “mirror matter” could have caused the devastating Tunguska blast that flattened 2100 square kilometres of Siberian forest nearly 100 years ago, a physicist has suggested. This ties in with the idea that invisible mirror matter could be scattered throughout the Universe. This could explain why the Tunguska event left no trace of its cause. Robert Foot of the University of Melbourne says that if mirror matter did cause the explosion,