The first solar eclipse to cross the continental United States in two decades will occur on May 20.

Set your calendar: The first solar eclipse to cross the continental United States in two decades will occur on May 20.

An annular solar eclipse occurs when the moon passes between the earth and sun, but the lunar disk does not completely block out the sun and instead leaves a β€œring of fire” visible around the moon at the point of maximum eclipse. Most anyone west of the Mississippi will see a partial eclipse, but the real treat will be for those located in the 200-mile wide path of the eclipse which will trek east from the California / Oregon border through Nevada, Utah, Arizona, New Mexico, and finally set below the horizon in west Texas.

Remember, you will need good eye protection if you choose to look.

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ATK today announced that it is building its own manned capsule for its Liberty solid rocket.

The competition continues to heat up: ATK today announced that it is building its own manned capsule for its Liberty launch system.

The capsule’s first two flights are scheduled in 2014, both abort tests, followed in 2015 by an orbital flight and, finally, a crewed orbital flight. The spacecraft is designed for ten flights each, and ATK plans to build a minimum of four capsules. All flights will be launched by the Liberty launcher, and ATK is not actively exploring adapting the capsule for other [launch vehicles].

Liberty is based on the upgraded shuttle solid rocket boosters that were developed for the Ares rocket, now cancelled.

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The Chronicle of Higher Education has fired a blogger merely for criticizing black studies programs.

The sad state of academic freedom: The Chronicle of Higher Education has fired a blogger merely for criticizing black studies programs.

What is worse is the number of the Chronicle’s readers who could not tolerate reading this point of view, and demanded the blogger’s writing be squelched.

Update: The blogger has responded.

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An Indian tribe has sued and three researchers have countersued over possession of two 10,000-year-old skeletons unearthed during construction in San Diego.

Fighting over bones: An Indian tribe has sued and three researchers have counter-sued over possession of two 10,000-year-old skeletons unearthed during construction in San Diego.

Not surprisingly, the problem here stems from a poorly written federal law amended by a bureaucratic rule in 2010 that gives any Indian tribe control over any ancient human bones found in the U.S., even if those bones come from a human that lived long before the tribe even existed.

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