Earth’s moon is shrinking and quaking, study says

Earth’s moon is shrinking and quaking, study says

By comparing lunar orbital imagery from NASA with seismic readings obtained almost half a century ago from equipment left on the moon by the Apollo missions, researchers believe they've figured out what's behind a pattern of mysterious moonquakes that have frustrated scientists for decades, seemingly originating from the upper few miles of the moon's crust: our neighboring satellite, believed to be a cold lifeless rock, is actually geologically alive, just like Earth.

The moon wrinkles as its interior cools and shrinks - much as a grape does as it dries to become a raisin.

The Apollo astronauts first began measuring seismic activity on the Moon in the 1960s and 1970s, finding the vast majority were occurred deep in the body's interior while a smaller number were on its surface.

"For me, these findings emphasize that we need to go back to the moon", said researcher Nicholas Schmerr of the University of Maryland.

"This is exciting as it wasn't clear if the moon had already gone through this period billions of years ago and was tectonically dead, or if it was still active in the present", Schmerr said.

As the Moon cools on the inside, the Moon's outside "wrinkles" and "shrivels" like a dehydrated grape when it turns into a raisin. The slow shrinking and cooling over time, according to the new research, has created the large cliffs and faults - formed as the crust is pushed up and over another chunk of crust nearby.

Bridenstine said the mission was named Artemis after the Greek mythological goddess of the Moon and twin sister to Apollo, namesake of the program that sent 12 American astronauts to the Moon between 1969 and 1972.

During the eight years the five Apollo seismometers functioned, they picked up 28 near-surface moonquakes measuring the Earth equivalent of between a 2 and 5 on the Moment Magnitude scale.

More news: May told to ditch Brexit talks with Labour
More news: IPL Final: Mumbai Indians celebrate record fourth IPL title
More news: Saracens rule Europe again after powering past Leinster

This means that the Apollo seismometers recorded the moon shrinking, the researchers said.

A view of the Taurus-Littrow valley taken by NASA's Lunar Reconnaissance Orbiter spacecraft.

By looking at the size and location of the tremors, the algorithm estimates the epicenter of the moonquakes.

As a result, researchers were able to "tentatively attribute" the recorded quakes to the faults.

Watters and his team also looked carefully at data from the Lunar Reconnaissance Orbiter and identified areas near the faults that look like they've been recently disturbed - boulders that have rolled in the near past, or evidence of landslides. This is where additional tidal stress from Earth's gravity causes a peak in the total stress on the moon's crust, making slippage along the thrust faults more likely.

Those that appear brighter indicate freshly exposed rock, suggesting an event like a "moonquake". (Prior to Pence's announcement, the agency had been working toward a late-2020s crewed lunar landing.) This pioneering mission will help lead to a long-term, sustainable human presence on the moon, NASA officials have said. "We learned a lot from the Apollo missions, but they really only scratched the surface".

Lunar science: $90 million to enable increased robotic exploration of the moon's polar regions in advance of a human mission. The college's 10 departments and more than a dozen interdisciplinary research centers foster scientific discovery with annual sponsored research funding exceeding $175 million.

In a teleconference with reporters on Monday evening, NASA administrator Jim Bridenstine said the budget amendment was a "down payment" on what will be needed in future years to fund the program.

Related Articles

  • SPOILERS: WWE Raw 5/13/19 From Europe

    SPOILERS: WWE Raw 5/13/19 From Europe

    The ex-WWE Champion then transformed into a dark, eerie and demonic character that the WWE Universe has never seen before. Drew McIntyre also gets involved, DDTing Strowman onto a chair, but he still won't stay down for a three count.
    Thousands March in London in Support of Palestine

    Thousands March in London in Support of Palestine

    Gazans have held weekly rallies since March 2018, primarily to draw global attention to the dire living conditions. Moreover, a small counter-protest was held with pro-Israel activists waving Israeli flags.
    Robert Kraft Scores HUGE Legal Victory In Release of Asian Spa Sextape

    Robert Kraft Scores HUGE Legal Victory In Release of Asian Spa Sextape

    Hanser wrote that detectives did not do enough to minimize the invasion of privacy of customers who did not commit crimes. The ruling marks a big win for Kraft, who was charged with two misdemeanor counts of soliciting prostitution in February.
  • Google's Digital Wellbeing feature is slowing down Pixel devices

    Google's Digital Wellbeing feature is slowing down Pixel devices

    These aren't quite flagship smartphones, but they are pretty good options for those looking for a smartphone under $500 right now. After having tried many things, it appeared that disabling Digital Wellbeing made the phones fast once again.
    Jonas Brothers return to 'SNL'

    Jonas Brothers return to 'SNL'

    The brothers also experienced significant changes in their personal lives since they broke up: All three got married. The brothers stood trial for throwing a house party at a man's vacation rental costing 5 million dollars in damages.
    Tiger Woods, Erica Herman Wrongful Death Lawsuit: How Rich Is The Golfer?

    Tiger Woods, Erica Herman Wrongful Death Lawsuit: How Rich Is The Golfer?

    DailyMail.com reached out to Woods' representatives but did not immediately receive a response. Both Tiger Woods and his girlfriend, Erica Herman (right), were named in the lawsuit.
  • Lenovo unveils world’s first foldable PC

    Lenovo unveils world’s first foldable PC

    It is a natural extension of Lenovo's previous attempts to innovate the PC form factor including the dual-screen Yoga Book C930 . According to the company, the new foldable PC is targeted at highly mobile, tech-savvy professionals who demand the best tools.
    Jimmy Carter Breaks Hip in Fall

    Jimmy Carter Breaks Hip in Fall

    The center has monitored elections around the world and worked to resolve conflicts and eradicate disease, including guinea worm. Interested in Jimmy Carter? Carter also continues to teach Sunday school lessons Maranatha Baptist Church in Plains.
    Sudan charges al-Bashir with killing protesters

    Sudan charges al-Bashir with killing protesters

    The military seeks a two-year transitional period during which army generals would retain most of the power. The protesters have remained in the streets, demanding a swift transition to civilian rule.
  • Historic victory for Mercedes as Hamilton wins Spanish GP

    Historic victory for Mercedes as Hamilton wins Spanish GP

    We brought some upgrades, aero and engine, and were expecting somehow to be in the fight but it has not been the case". Once in front he cruised through the race's 66 laps of the Barcelona-Catalunya circuit without a challenge.

    By CNN: Rashida Tlaib's revisionist Holocaust comments get fact-checked

    Tlaib tweeted: "Policing my words, twisting & turning them to ignite vile attacks on me will not work. They must stop, and they owe her an apology", Hoyer tweeted.
    Donald Trump Leaves $325B Additional China Tariffs in Question

    Donald Trump Leaves $325B Additional China Tariffs in Question

    Tariffs on Chinese goods increased from 10% to 25% on Friday, making the underlying cost of those items higher for US customers. Trump tweeted , adding that tariffs can be avoided if manufacturers shift production from China to other countries.