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The Two-Way
12:44 pm
Sat August 24, 2013

Tons Of Molten Glass Go Into Making Mirror For Giant Telescope

An artist's concept of the completed Giant Magellan Telescope (GMT)
Giant Magellan Telescope

Originally published on Sat August 24, 2013 4:08 pm

Technicians on Saturday are set to cast 20 tons of glass for the third of seven ultra-precise primary mirrors that will make up the 72-foot Giant Magellan Telescope, scheduled for completion in northern Chile's arid Atacama Desert in 2020.

The parabolic mirror will be cast at the University of Arizona's Steward Observatory Mirror Lab. The molten borosilicate, made by the Ohara Corporation, will be spun cast at 2140 degrees Fahrenheit.

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The Two-Way
10:34 am
Sat August 24, 2013

U.S. Weighs Options On Syria After Reported Chemical Attack

Female rebel fighters gather in Syria's northern city of Aleppo on Saturday to protest what they claim was a chemical attack by pro-government forces in a suburb of Damascus.
AFP AFP/Getty Images

Originally published on Sat August 24, 2013 4:29 pm

(This post last updated at 4:20 p.m. ET)

President Obama has been meeting with his national security team to discuss reports of the Syrian government's use of chemical weapons, a White House official said Saturday, amid strong hints that a U.S. military strike was on the table.

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The Two-Way
9:18 am
Sat August 24, 2013

Thousands Gather In D.C. To Mark 1963 Civil Rights March

People hold signs as they gather to celebrate the 50th anniversary of the March on Washington.
Mark Wilson Getty Images

Originally published on Sat August 24, 2013 3:13 pm

(This post last updated at 2:20 p.m. ET)

Tens of thousands of people assembled on the National Mall to commemorate the 50th anniversary of Martin Luther King Jr.'s 1963 March on Washington, best known as the venue for the iconic "I Have a Dream" speech that helped galvanize the civil rights movement.

Organizers, including the Rev. Al Sharpton and King's son, Martin Luther King III, had hoped to attract 100,000 people to attend Saturday's events leading up the official Aug. 28 anniversary.

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The Two-Way
7:53 am
Sat August 24, 2013

Yosemite Fire Called One Of Largest In Recent California History

The Rim Fire consumes trees on Friday near Groveland, California.
Justin Sullivan Getty Images

Originally published on Sat August 24, 2013 9:58 pm

A wildfire that has spread into Yosemite National Park is now threatening the power grid that supplies San Francisco, prompting Gov. Jerry Brown to declare an emergency for the city.

The 200-square-mile Rim Fire also threatens thousands of homes and has forced the evacuations of hundreds.

Bob Hensley, reporting for NPR, says that in issuing the state of emergency for the city of San Francisco and San Francisco County late Friday, Brown indicated the wildfire has damaged the electrical infrastructure that provides power to the Bay Area 150 miles to the west.

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Code Switch
6:34 am
Sat August 24, 2013

What The March On Washington Called For, And What We Got

Crowds gather in front of the Washington Monument during the "March on Washington For Jobs and Freedom" in 1963.
AP

Originally published on Sat August 24, 2013 12:10 pm

Wednesday marks the 50th celebration of the March on Washington — perhaps you've heard something about it? — and it's a little hard to resist the urge to compare the America of 1963 to 2013, to see how they've diverged.

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