"It's really remarkable to see how data from almost 50 years ago and from the LRO mission has been combined to advance our understanding of the moon while suggesting where future missions intent on studying the moon's interior processes should go", said Lunar Reconnaissance Orbiter (LRO) Project Scientist John Keller. Impact craters, another common lunar feature, can help geologists better date these "wrinkle ridges" and their importance in the moon's cooling and shrinking activity. The scarps form when one section of the Moon's crust (left-pointing arrows) is pushed up over an adjacent section (right-pointing arrows) as the Moon's interior cools and shrinks. Credit: NASA/GSFC/Arizona State University/Smithsonian.
Speaking at the Humans to Mars Summit in Washington DC, Mr Bridenstein said: 'I have an 11-year-old daughter and I want her to be able to see herself in the same way that our current very diverse astronaut corps sees itself. The American space agency has named it Artemis, after the Greek Moon goddess who was also the twin sister of the Apollo.
Astronaut James Irwin, lunar module pilot, gives a military salute while standing beside the US flag during Apollo 15 lunar surface extravehicular activity (EVA) at the Hadley-Apennine landing site on the moon, August 1, 1971.
Those seismometers (instruments used to measure the shaking produced by quakes) recorded the moonquakes that occurred between 1969 and 1977, which allowed Watters and his team to analyze their data using an algorithm to pinpoint the quake locations. Close enough that scientists can tentatively say the faults are the cause of the quakes. This point, which is called apogee, is also the period during which Earth's gravity inflicts the most stress, or tidal pressure, on the Moon's structure. If this is correct, the discovery demonstrates that the moon pursues to be tectonically active today.
"Unlike the flexible skin on a grape, the Moon's surface crust is brittle, so it breaks as it shrinks".
Human lunar landing system: $1 billion to support the development of a commercial lunar landing system capable of carrying astronauts. Tectonic pushing and pulling of the moon's crust also resulted in lobate scarps (curved hills) and graben (shallow trenches). Over time, the lunar surface darkens due to weathering and radiation, so bright spots are areas where recent activity has exposed areas on the lunar surface.
Eight moonquakes were discovered to have epicenters within 19 miles (31 km) of geological formations called thrust faults. Scientists trying to reconstruct the Moon's origin wonder whether the same happened to the Moon, or if instead it was only partially molten, perhaps with a magma ocean over a more slowly heating deep interior.
"Our charge is to go quickly, and to stay, to press our collective efforts forward with a fervor that will see us return to the moon in a manner that is wholly different than 50 years ago", Shatner narrates.
We've known that the moon shudders since four seismometers were placed on its surface during the latter stages of the Apollo program.