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Moon Mystery Solved

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  • President Trump to hold Phoenix rally

    President Trump to hold Phoenix rally

    Wednesday, August 16 2017 10:51 AM EDT2017-08-16 14:51:08 GMT
    (Source: Twitter / @realDonaldTrump)(Source: Twitter / @realDonaldTrump)

    President Trump will hold a rally at the Phoenix Convention Center on Tuesday, August 22 at 7:00 p.m. Anyone interested in attending can buy tickets here. The Phoenix Convention Center is located at 100 N. 3rd Street, Phoenix, AZ 85004. MOBILE USERS: Download our Tucson News Now app for Apple and Android devices. Copyright 2017 Tucson News Now. All rights reserved.

    President Trump will hold a rally at the Phoenix Convention Center on Tuesday, August 22 at 7:00 p.m. Anyone interested in attending can buy tickets here. The Phoenix Convention Center is located at 100 N. 3rd Street, Phoenix, AZ 85004. MOBILE USERS: Download our Tucson News Now app for Apple and Android devices. Copyright 2017 Tucson News Now. All rights reserved.

  • BREAKING

    Police investigating fatal shooting at UA Tech Park in Tucson

    Police investigating fatal shooting at UA Tech Park in Tucson

    Wednesday, August 16 2017 1:21 AM EDT2017-08-16 05:21:43 GMT
    (Source: Tucson News Now)(Source: Tucson News Now)

    A man died Tuesday night after he was shot by a security guard at the UA Tech Park on the southeast side of Tucson, city police said.

    A man died Tuesday night after he was shot by a security guard at the UA Tech Park on the southeast side of Tucson, city police said.

  • Tucson police warning about new phone scam

    Tucson police warning about new phone scam

    Tuesday, August 15 2017 7:33 PM EDT2017-08-15 23:33:36 GMT
    (Source: KOLD News 13)(Source: KOLD News 13)

    Some victims have lost hundreds of dollars in this new take on an old scam. One victim lost several thousand dollars.

    Some victims have lost hundreds of dollars in this new take on an old scam. One victim lost several thousand dollars.

A professor and graduate student of astrophysics at Penn State University believe to have the answer to a 55-year-old mystery, known as the "Lunar Far side Highlands Problem".  The mystery is why the far side of the moon, that we never see from Earth, is not full of seas or lunar maria (dark plains found on the moon) like the nearside. Basically, the nearside appears to have more "damage" to the surface than the far side.

Images from the far side were first captured in 1959, by the soviet spacecraft Luna 3. The images revealed a smoother lunar surface, and we may now know why.

Professor Steinn Sirgudson and grad student Arpita Roy, say it has to do with how the moon was formed.  The consensus of our moons creation is from a glancing, but violent, collision of a mars-sized object and our Earth billions of years ago. After the impact, the Earth and moon were very hot. The moon cooled much quicker, because it's smaller.

Heat from Earth kept the near side hotter for longer, will the far side of the moon cooled quicker. Keep in mind the moon was also about 20 times closer to Earth than it is now. The hot side was still molten and soft, while aluminum and calcium condensed on the far side. Millions of years later, meteoroids would hit the moons surface, and release the basaltic lava that lie beneath. The lava created some of the seas and lunar maria we see today.

The crust on the far side of the moon was much cooler and harder, so today its surface appears flatter.

Photo taken by KOLD viewer, Mark Sagara

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