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Another Shiny Object Seen In Pictures From Mars Is Now Explained

Last week, a blogger at Universe Today began a bit of an Internet frenzy when a reader spotted a shiny object in one of the pictures taken on Mars by the Curiosity rover.

There it was, a piece of what looked like shiny metal sticking out from a rock. It's not the first time the Mars rover Curiosity had spotted a shiny object. The last time around — back in October — a very small, plastic-looking object created the same kind of speculation. (Could it be?) It turned out it, the plastic looking thing was likely a piece of the spacecraft that dropped the rover off in Mars.

Today, NASA sent an analysis of the latest image from Ron Sletten, a team collaborator who studies soils at the University of Washington.

No, Sletten said, this is not a piece of debris from an alien spacecraft. It's actually a piece of rock that is more resistant to erosion than the rock it's embedded in.

"The rock on top of the projection is likely more resistant to wind erosion and protects the underlying rock from being eroded," he writes. "The shiny surface suggests that this rock has a fine grain and is relatively hard. Hard, fine grained rocks can be polished by the wind to form very smooth surfaces."

In some ways, said Sletten, it's a lot like what happens to rocks in Antarctica.

Sletten put together a slideshow that explains his thinking:

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'Theeb' Looks At Middle East History Through The Eyes Of A Bedouin Boy

The Oscar-nominated film is set in 1916 Saudi Arabia, a pivotal time in the region. Director Naji Abu Nowar says he wanted to explore "how strange and surreal it must have been" for the Bedouins.
NPR

Beer And Snack Pairings: A Super Bowl Game Everyone Can Win

Which beer goes with guacamole? How can a brew complement spicy wings? Two craft beer experts share their favorite pairings and help us take our Super Bowl snack game to the next level.
NPR

#MemeOfTheWeek: Bernie Or Hillary. Sexist or Nah?

A series of fake campaign posters locking Bernie Sanders and Hillary Clinton was just supposed to be funny, said the meme's creator. Except a lot of people thought it was sexist.
NPR

Twitter Says It Has Shut Down 125,000 Terrorism-Related Accounts

The announcement comes just weeks after a woman sued Twitter, saying the platform knowingly let ISIS use the network "to spread propaganda, raise money and attract recruits."

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