but these are not craters, but many small white shiny structures. 'The spire was probably built to accommodate a very large vessel so that it could dock safely without landing.' However ...

“Quantifying the number of secondaries is important to better understand how a relatively small crater could possibly eject that much material during the cratering process.” This is one of ...

After a couple of practice hops, Grace will then try something unprecedented—entering a permanently shadowed moon crater. The team is targeting a small crater about 200 meters from the landing ...