21. At least, we haven't yet observed a single big meteorite impact since the discovery of the telescope. 22. Then there are the catastrophic explanations that are the current favorites : meteorite impact and world-class volcanism. 23. He is also noted for the discovery of craters on the Moon were caused by meteorite impacts . 24. The telescope lander would also carry geophones, which could listen to meteorite impacts on the Moon's surface. 25. They made stone tools, including those from Darwin Glass a natural glass formed from a meteorite impact . 26. Glaciation, coastal erosion, the build-up of coral reefs, and large meteorite impacts also act to reshape the landscape. 27. These are possibly tektite deposits, formed as molten material ejected by a meteorite impact fell back to Earth. 28. Another speculation is that the extinctions are related to several large meteorite impacts that occurred about this time. 29. Potential sources for this hydrogen include water deposits from comet or meteorite impacts , the solar wind or out-gassing. 30. Directions to the meteorite impact location are posted on a path ( Ringstrasse ) in the Rommershausen forest.
