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Space

Dwarf Planets Accumulate In Outer Solar System 93

An anonymous reader tips a piece in Australian Geographic indicating that Pluto may be in for another demotion, as researchers work to define dwarf planets more exactly. "[Australian researchers] now argue that the radius which defines a dwarf planet should instead be from 200–300 km, depending on whether the object is made of ice or rock. They base their smaller radius on the limit at which objects naturally form a spherical rather than potato-like shape because of 'self-gravity.' Icy objects less than 200 km (or rocky objects less than 300 km) across are likely to be potato shapes, while objects larger than this are spherical. ... They call this limit the 'potato radius' ... [One researcher is quoted] 'I have no problem with there being hundreds of dwarf planets eventually.'"
Earth

Yellowstone Supervolcano Larger Than First Thought 451

drewtheman writes "New studies of the plumbing that feeds the Yellowstone supervolcano in Wyoming's Yellowstone National Park shows the plume and the magma chamber under the volcano are larger than first thought and contradicts claims that only shallow hot rock exists. University of Utah research professor of geophysics Robert Smith led four separate studies that verify a plume of hot and molten rock at least 410 miles deep that rises at an angle from the northwest."

Comment Re:Typical Dan Rather (Score 3, Interesting) 402

A couple of points here: 1) Rather did not do the investigative work on the Bush story that blew up in CBS's face. It was a producer and her staff, and he delivered it on the air. Turns out that they were defrauded, under circumstances that have yet to come out. He was basically railroaded, and I wish him well in his lawsuit against his old bosses. 2) It's been noted elsewhere that all of this alarming information will either be invalidated or confirmed during the certification process. Well, as the piece points out, there is a "revolving door" between Boeing and the FAA, meaning that key employees of the agency who "behave" will get lucrative jobs with the aircraft manufacturer. Chances of an honest assessment which runs counter to the interests of Boeing are practically zero. Happy flying, everyone!

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