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Grady Murphy
Lives in Denver
240 followers|207,774 views
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Grady Murphy

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First World Problems: The Smallest Planet In The Solar System Is Shrinking

Images captured by NASA’s MESSENGER spacecraft have provided an illustration of Mercury’s shrinking and wrinkling surface over the past 4 billion years. While the behavior of Earth’s outermost shell can best be explained through plate tectonics and the shifting of our lithosphere, Mercury has but one solid shell for a crust. As the planet’s molten core has cooled since its formation billions of years ago, the planet itself has contracted causing Mercury’s rocky exterior to crack and shift to accommodate the smaller size, much like the wrinkles that form on the skin of an apple skin as it dries out and shrinks.

“We see the landscape literally crumpling up,” said William McKinnon, a professor in the Department of Earth and Planetary Sciences at Washington University in St. Louis. “Massive slabs of rock are sliding over one another.”

As for the change in size, the study found in the journal Nature Geoscience notes that Mercury has seemingly contracted in radius in some locations as far as 7 kilometers, making the modern-day radial measurement of the planet 2,440 kilometers.

NASA’s MESSENGER spacecraft ended its mission today, as planned, by colliding with Mercury. Read more: http://www.penny4nasa.org/2015/04/30/watch-messenger-spacecraft-end-of-mission/

Celebrate NASA’s MESSENGER spacecraft by writing to Congress to let them know you support increasing NASA's budget: http://www.penny4nasa.org/take-action/

Read more:
http://goo.gl/4Kw7DM
http://goo.gl/ZCXTNh
http://goo.gl/XcuXKL

#FirstWorldProblems #NASA #Mercury #Space
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Great explanation of one of the two Valla builds I like to run!
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I've been digging Heroes of the Storm lately. You should check it out!
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Speechless. Just outstanding. One of the best Youngers I've had - Drinking a Pliny the Younger (2015) by Russian River Brewing Company Falling Rock Tap House on Untappd
Grady is drinking a Pliny the Younger (2015) by Russian River Brewing Company on Untappd
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This was not planned.... I'm blown away.... +Guy Winn​
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Yeah drunk photography was never my specialty
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Even prettier version if the last one
 
Sorry for the poor quality video everyone, apparently it didn't export from Twitch in HD. Soooo, enjoy :D
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Have him in circles
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Grady Murphy

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Hey, I'm in this one! I'm playing Tyrande
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Hey, it's you! Wonderful teamwork lead to this decisive victory!
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Not the build I go when I play Lili but good video on how stronk she can be!
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+Grady Murphy There are a few different ways to build healing/support Li Li, this one is my favorite, I think I will start picking up two for one.
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This batch is outstanding, smooth, and perfectly balanced. - Drinking a Pliny the Elder by Russian River Brewing Company Falling Rock Tap House on Untappd
Grady is drinking a Pliny the Elder by Russian River Brewing Company on Untappd
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I picked up this bundle, I am excited to get the hard and soft cover books in!
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I am buying this!!!!
 
YES!

#starwars  
For a long time Star Wars fans have been clamoring for Disney/Lucasfilm to re-release the [...]
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We get breaks :P
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Have him in circles
240 people
范桐玮's profile photo
Jannatul Ferdous's profile photo
Brice Young's profile photo
tpein trein's profile photo
Don Webster's profile photo
Hardcore Orange's profile photo
Maggie Metzler's profile photo
Erin Hastings's profile photo
Colorado Rockies's profile photo
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Denver
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Denver, CO - Fort Collins, CO - Greeley, CO - Augusta, GA - Biloxi, MS
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Be true to yourself and the world will follow.
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The wife and I are here at least once a week. The beer is very good and the pizza's are delicious. A must try
Public - 9 months ago
reviewed 9 months ago
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