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A constellation of problems for shuttle's replacement

Problems are mounting for the Orion spacecraft that is supposed to replace the retiring space shuttle fleet and carry U.S. astronauts to the moon by 2020. Among the most severe, according to a 117-page internal NASA report posted on Nasawatch.com this week: an $80-million overrun on development of a single motor; a hard-to-open hatch door; and the potential that the stack (craft and Ares 1 rocket) will vibrate itself to pieces during takeoff...

July 18, 2008 — JR Minkel

Giant's Electric-Assist Bicycle: A Review

I have a biking nemesis: During my regular rides around the six-mile outer loop of New York’s Central Park, the big hill at the north (uptown) end of the park invariably sucks the very life out of my aging legs...

July 18, 2008 — Steven Ashley

Grunting, humming fish joins ancient chorus

Next time you're at a loud singles bar, thank a fish for inspiration. Here's why: When a male midshipman fish [ above ] eyes a competitor swimming too close, he chases off the interloper with an audible grunt...

July 18, 2008 — JR Minkel

Gore challenge: 100 percent renewable power in 10 years

Former vice president Al Gore today challenged the U.S. to go from getting more than half its electrical power from greenhouse gas-spewing coal-fired power plants to getting all of it from 100 percent carbon neutral sources in a decade...

July 17, 2008 — David Biello

Looking at lightning's nuts and bolts with X-rays

Researchers say that x-rays may help them predict where lightning will strike by allowing them to view what happens inside bolts as they move. University of Florida and Florida Institute of Technology engineers report in the online edition of Geophysical Research Letters that lightning zaps to the ground in 30- to 160-foot (nine- to 49-meter) stages—emitting x-rays after completing each "step." Understanding how a bolt travels, they say, is crucial in determining where it will strike...

July 17, 2008 — Larry Greenemeier

Happy anniversary, B-2 Stealth Bomber

Nineteen years ago today, the U.S. Air Force flew a B-2 Spirit bomber—better known as the Stealth Bomber—for the first time. The flight came at a cost of billions of dollars, as the sophisticated technology that allows the bomber to evade radar detection required far more development than the Air Force had budgeted...

July 17, 2008 — Ivan Oransky

Bioethicist drops suit against Albany Medical College

Ousted head of the Alden March Bioethics Institute (AMBI) Glenn McGee has agreed to drop his lawsuit against Albany Medical College for allegedly refusing to acknowledge his severance package, following his dismissal two months ago...

July 16, 2008 — Christie Nicholson

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Dwindling Supply. Increasing Demand.

Dwindling Supply. Increasing Demand.

Solving the Water Crisis