Lightning induced Schumann Resonance may help divine exoplanets

From the NASA/Goddard Space Flight Center Science nugget: Lightning signature could help reveal the solar system’s origins Every second, lightning flashes some 50 times on Earth. Together these discharges coalesce and get stronger, creating electromagnetic waves circling around Earth, to create a beating pulse between the ground and the lower ionosphere, about 60 miles up…

Originally posted on Wayne Hale's Blog:
Now that Discovery is safely delivered to the Smithsonian, I think I can tell the story of how we nearly lost her in July of 2005, and how well-intentioned, highly motivated,  hard-working, smart people can miss the most obvious. It’s tough to know people who have died.  Many…

Worrisome engineering patches

From Slashdot: BJ_Covert_Action writes: “NASA engineers have finally discovered the root cause of the cracks that have been found on space shuttle Discovery’s main external tank. The main tank, one of the ‘Super Lightweight Tank’ models developed by Lockheed-Martin, employs an aluminum-lithium alloy developed by Lockheed-Martin specifically for this application.