Some more pointless stuff to most of us earthlings...

"Scientists have long puzzled over why the surface of the sun is cooler than its corona, the outer hazy atmosphere visible during a solar eclipse. Now, thanks to a five-minute observation by a small, but very high-resolution ultraviolet telescope, they have some answers. Hi-C, which was launched aboard a suborbital rocket to study the sun without interference from Earth's atmosphere, revealed interwoven magnetic fields braided like hair. When the braids relaxed, they released energy, heating the corona (abstract. 'I had no idea we would see structures like that in the corona. Seeing these braids was very new to me,' astrophysicist Jonathan Cirtain with NASA's Marshall Space Flight Center in Huntsville, Ala., told Discovery News."

 "An international team of astronomers has used the CSIRO-run Australia Telescope Compact Array to measure the cooling of the universe since the Big Bang. According to the CSIRO, it is the most accurate reading yet of how hot the universe used to be. When the universe was half its current age its temperature was -267.92 degrees Celsius (5.08 Kelvin), the team found, which is warmer than today's universe (270.27 degrees Celsius)."

 SternisheFan sends news of researchers who encoded an MP3, a PDF, a JPG, and a TXT file into DNA, along with another file that explains the encoding. The researchers estimate the storage density of this technique at 2.2 petabytes per gram (abstract). "We knew we needed to make a code using only short strings of DNA, and to do it in such a way that creating a run of the same letter would be impossible. So we figured, let's break up the code into lots of overlapping fragments going in both directions, with indexing information showing where each fragment belongs in the overall code, and make a coding scheme that doesn't allow repeats. That way, you would have to have the same error on four different fragments for it to fail – and that would be very rare," said one of the study's authors. "We've created a code that's error tolerant using a molecular form we know will last in the right conditions for 10 000 years, or possibly longer," said another.

 "There's a funny thing about the estimated $1.7 trillion that American companies say they have indefinitely invested overseas,' reports the WSJ's Kate Linebaugh (reg. or the old Google trick). 'A lot of it is actually sitting right here at home.' And if tech companies like Google and Microsoft want to keep more than three-quarters of the cash owned by their foreign subsidiaries at U.S. banks, held in U.S. dollars or parked in U.S. government and corporate securities, Linebaugh explains, this money is still overseas in the eyes of the IRS and isn't taxed as long as it doesn't flow back to the U.S. parent company. Helping corporations avoid the need to tap their foreign-held cash are low interest rates at home, which have allowed U.S. companies to borrow cheaply. Oracle, for instance, raised $5 billion last year, paying an interest rate roughly two-thirds of a percentage point above the low post-crash Treasury yield, about 2.5% at the time (by contrast, grad students and parents pay 6.8%-7.9% for Federal student loans). Were the funds it manages to keep in the hands of its foreign subsidiaries brought home and subjected to U.S. income tax, Oracle estimated it could owe Uncle Sam about $6.3 billion."