[null and void]

If his theory was right, Dr. Leon Stuart would be the first and only human in history to witness and document the impact of an asteroid-sized body impacting the Moon's scarred exterior.

Ummmm, didn't a few monks in England report an impact on the moon's top "horn", the resulting shower of sparks, and the appearance (illusion) of the moon shuddering in the 1200's? IIRC this tracks with the location and estimated age/youth of the Tico crater...

[cogitator]

Ummmm, didn't a few monks in England report an impact on the moon's top "horn", the resulting shower of sparks, and the appearance (illusion) of the moon shuddering in the 1200's? IIRC this tracks with the location and estimated age/youth of the Tico crater...

Yes on the monk's observations (1178), but I don't think it was Tycho. One Web article says this might be the crater "Bruno".