This thrust fault is one of thousands discovered on the Moon by NASA's Lunar Reconnaissance Orbiter. As the interior shrinks the hard crusty, brittle exterior breaks causing "thrust faults" where one section of the crust is pushed up over a neighboring part. Taking all the models together and examining images showing evidence of recent moving debris on the Moon, the researchers hypothesized that the Moon must still be tectonically active.
Nicholas Schmerr, another author of the study and assistant professor of geology at the University of Maryland, expressed his excitement on the result of the study and mentioned in a statement that faults producing moonquakes are different to that of Earth's.
By tracing the moonquakes both in time and location to places where the Moon's surface is most likely to be in motion, scientists are more certain than ever that the Moon is not dead yet, and is in fact still settling its own surface, and its interactions with its closest neighbor - our own Earth. The interior of the moon is cooling, causing it to grow smaller.
Realizing more about the enterprise involving where the moon's surface is still active could assist scientists to discern where and where not to land subsequent spacecraft.
Watters said some of the quakes "can be fairly strong" - as high as a 5 on the Richter scale. The vice president then challenged NASA to get humans to the moon within the next five years and said the space agency must meet the new deadline by "any means necessary". Some of these images show landslides or boulders at the bottom of relatively bright patches on the slopes of fault scarps or nearby terrain. They analyzed seismic data taken from 28 moonquakes recorded during 1969 and 1977 during the Apollo missions with a type of algorithm known as a sparse seismic network.
The Apollo 11, 12, 14, 15 and 16 astronauts placed seismometersinstruments that measure the shaking produced by quakesat their landing sites.
-It is truly remarkable to see how the data from almost 50 years ago and the LRO mission were combined to advance our understanding of the Moon while suggesting where future missions to study the inner processes of the Moon will take place.
"They use a lot of statistical arguments, and I think they do good science, but I wouldn't say it's definitely there", Ceri Nunn of NASA's Jet Propulsion Laboratory, not involved in the study, tells Mann. This won't be the only budget increase NASA proposes in the years ahead, as it only addresses the immediate need for new cash in 2020, but if Trump wants to go to the Moon he should know that it's going to cost taxpayers a pretty penny.