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The moon is slowly shrinking over time, which is causing wrinkles in its crust and moonquakes, according to photos captured by NASA's Lunar Reconnaissance Orbiter.Unlike Earth, the moon doesn't have tectonic plates. Instead, as the moon's interior has cooled over the last several hundred million years, it has caused the surface to wrinkle as it shrinks. Unlike the flexible skin of a grape when it shrinks into a raisin, the moon's brittle crust breaks. This creates stair-step cliffs called thrust faults as part of the crust is pushed up and over another close part of the crust.There are now thousands of cliffs scattered across the moon's surface, averaging a few miles long and tens of yards high. The orbiter has taken photos of more than 3,500 of them since 2009. In 1972, Apollo 17 astronauts Eugene Cernan and Harrison Schmitt had to ascend one of these cliffs, the Lee-Lincoln fault scarp, by zig-zagging the lunar rover over it.Today the moon is 50 meters "skinnier" because of this process. And as it shrinks, the moon actively produces moonquakes along the faults. Researchers re-analyzed seismic data they had from the moon to compare with the images gathered by the orbiter.Data from the seismometers placed on the moon during the Apollo 11, 12, 14, 15 and 16 missions revealed 28 moonquakes recorded between 1969 and 1977. Researchers compared the location of the epicenters for those quakes with the orbiter imagery of the faults. At least eight of the quakes occurred due to activity along the faults. This rules out the possibility of asteroid impacts or rumblings from the moon's interior.This means that the Apollo seismometers recorded the moon shrinking, the researchers said. The study of Apollo seismic data and analysis of more than 12,000 of the orbiter's photos were published Monday in the journal 1841

The National Rifle Association is suing after the San Francisco Board of Supervisors labeled it a "domestic terrorist organization," according to the complaint.Last week, the board 193

The NFL said Monday the 2020 college draft would still take place on April 23-25, but it was canceling the public events surrounding the event in Las Vegas.The league said that it still plans on televising the event, but did not go into specifics."This decision reflects our foremost priority -- the health and safety of all fans and citizens," NFL commissioner Roger Goodell in a 393

The Defense Department announced Tuesday that it had awarded 6 million in contracts to build President Donald Trump's much-sought-after border wall with a completion date for these projects of October 2020.A 9 million contract was awarded to the Texas-based company SLSCO Ltd. for the construction of border wall in Santa Teresa, New Mexico which is located in the El Paso sector of the border.A second 7 million contract was awarded to the Montana-based Barnard Construction Company for work in Yuma, Arizona.The contracts were awarded by the US Army Corps of Engineers.Lt. Col. Jamie Davis, a spokesman for the Department of Defense, told CNN that the El Paso sector contract would include the construction of "30-foot bollard fencing and a five-foot anti-climb plate," and that the Yuma Sector project will feature "18-foot bollard fencing and a five-foot anti-climb plate."A spokesperson for the Army Corps of Engineers told CNN last month that the plan was to install 46 miles at El Paso and 11 miles of fencing at Yuma. CNN has reported that DHS had asked the Pentagon for assistance replacing existing vehicle barriers with pedestrian fencing, as well as light installation in El Paso and Yuma.These are the first border wall contracts to use Pentagon funds that the Trump administration had repurposed from other Defense Department accounts to support the border wall.CNN 1401

The cousin of a man shot and killed by an off-duty police officer in a California Costco says his relative was nonverbal and couldn't have started the argument that allegedly led to the shooting, according to a 223