by JohnD » Sat Jul 17, 2021 10:28 am
Both of those are "Rille", a German word for 'groove' that seems to be given a Latin name in the plural, "Rimae", for some reason. They may be straight or more usually 'sinuous'.
There are many rimae on the Moon and other bodies of the Solar System, and many explanations for them, all of which may be true. One of the most prominent on the Moon is Hadley Rille, visited by the Apollo 15 crew, so we probably know more about that than any other. This report summarizes all that is known, and suggests that it is a collapsed lava tube.
https://www.lpi.usra.edu/resources/USGS ... o-0041.pdf
Of different interest is the oblique line above the craters in the ApoD and tangential to Alphonsus. Obscured by later impacts, including Alphonsus, such straight lines have raised suggestions of intellegent intent, especially when seen on Phobos (
https://www.wired.co.uk/article/phobos- ... ry-created) but are the relic of ancient crater chains.
XgoeX jests!
John
Both of those are "Rille", a German word for 'groove' that seems to be given a Latin name in the plural, "Rimae", for some reason. They may be straight or more usually 'sinuous'.
There are many rimae on the Moon and other bodies of the Solar System, and many explanations for them, all of which may be true. One of the most prominent on the Moon is Hadley Rille, visited by the Apollo 15 crew, so we probably know more about that than any other. This report summarizes all that is known, and suggests that it is a collapsed lava tube. https://www.lpi.usra.edu/resources/USGS-Reports/Astro-0041.pdf
Of different interest is the oblique line above the craters in the ApoD and tangential to Alphonsus. Obscured by later impacts, including Alphonsus, such straight lines have raised suggestions of intellegent intent, especially when seen on Phobos (https://www.wired.co.uk/article/phobos-mars-moon-history-created) but are the relic of ancient crater chains.
XgoeX jests!
John