Police in Baton Rouge say they have arrested three people who stole guns with the goal of killing police officers. They are still looking for a fourth suspect in the alleged plot, NPR's Greg Allen reports.

"Police say the thefts were at a Baton Rouge pawn shop early Saturday morning," Greg says. "One person was arrested at the scene. Since then, two others have been arrested and six of the eight stolen handguns have been recovered. Police are still looking for one other man."

A 13-year-old boy is among those arrested, Greg says.

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After an international tribunal invalidated Beijing's claims to the South China Sea, Chinese authorities have declared in no uncertain terms that they will be ignoring the ruling.

The Philippines brought the case to the Permanent Court of Arbitration in The Hague, objecting to China's claims to maritime rights in the disputed waters. The tribunal agreed that China had no legal authority to claim the waters, and was infringing on the sovereign rights of the Philippines.

Donald Trump is firing back at Supreme Court Justice Ruth Bader Ginsburg after she made disparaging comments about him in several media interviews. He tweeted late Tuesday that she "has embarrassed all" with her "very dumb" comments about the candidate. Trump ended his tweet with "Her mind is shot - resign!":

Donald Trump wrapped up his public tryout of potential vice presidential candidates in Indiana Tuesday night with Gov. Mike Pence giving the final audition.

The Indiana governor's stock as Trump's possible running mate is believed to be on the rise, with New Jersey Gov. Chris Christie and former House Speaker Newt Gingrich also atop the list. Sources tell NPR the presumptive GOP presidential nominee is close to making a decision, which he's widely expected to announce by Friday.

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The unassuming hero of Jonas Karlsson's clever, Kafkaesque parable is the opposite of a malcontent. Despite scant education, a limited social life, and no prospects for success as it is usually defined, he's that rarity, a most happy fella with an amazing ability to content himself with very little. But one day, returning to his barebones flat from his dead-end, part-time job at a video store, he finds an astronomical bill from an entity called W.R.D. He assumes it's a scam. Actually, it is more sinister-- and it forces him to take a good hard look at his life and values.

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Donald Trump picked a military town — Virginia Beach, Va. — to give a speech Monday on how he would go about overhauling the Department of Veterans Affairs if elected.

He blamed the Obama administration for a string of scandals at the VA during the past two years, and claimed that his rival, Hillary Clinton, has downplayed the problems and won't fix them.

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Arizona Telescope Sets New Standard For Optical Astronomy

Mar 15, 2012

A telescope in Arizona has taken some of the clearest pictures ever of distant celestial objects, including the first images of the innermost planet in a planetary system 127 light years from Earth. They achieved this astronomical tour de force using something called adaptive optics, a technique that eliminates the blurring caused by the Earth's atmosphere.

Having to peer through the atmosphere is a major disadvantage of ground-based telescopes compared with orbiting telescopes like the Hubble Space Telescope. But Earth observatories have one major advantage: they can use much larger mirrors to gather light. For example, Hubble has a single light-collecting mirror less than 8 feet in diameter. The Large Binocular Telescope in Arizona has two primary light-gathering mirrors, each 27.5 feet in diameter. The larger the mirrors, the fainter and smaller the object a telescope can see.

Until now, that size advantage was negated by atmospheric turbulence that causes light to spread out, creating a blurry image of stars. But adaptive optics is changing all that. The LBT system analyzes the light distortion caused by the air above the telescope, and then corrects for that distortion by using a second mirror system that can change its shape 1,000 times per second to compensate for the atmospheric turbulence.

"With this unrivaled new technology, we can now probe the close-in environments of nearby stars with a clarity that was previously not possible," says Richard Green, Director of the LBT. For example, LBT was able to see a fourth planet in the system known as HR8799, an object that was predicted to exist but hadn't been seen before. It was also able to deduce that the planet probably has a cloud covering masking it's methane atmosphere.

Here's a video that shows it in action:

"It's incredible that we can now learn so much about these distant worlds, when a short time ago directly imaging extrasolar planets was still a dream," said University of Arizona astronomer Andy Skemer.

The LBT is an international collaboration. Partners include: The University of Arizona, Istituto Nazionale di Astrofisica, Italy, the Max Planck Society, the Astrophysical Institute Potsdam, and Heidelberg University, The Ohio State University, The University of Notre Dame, University of Minnesota and University of Virginia

(Joe Palca is a correspondent on NPR's science desk.)

Copyright 2013 NPR. To see more, visit http://www.npr.org/.