futurejournalismproject
Instead of seeking an engaged audience — that’s a metric better suited for movies and prime-time TV — we in news should be seeking an informed public, using new tools to make them better informed with greater relevance and more efficiency. Instead of measuring our success by how much more time we can get them to spend with us, we should measure it by how much less time they need to spend with us to reach their own goals.

Jeff Jarvis, Maybe News is Just More Efficient, BuzzMachine.

FJP: Jarvis goes on to discuss a hypothetical news service that accomplishes this task of efficiency by serving the public news that uses a (very) smart algorithm to bring each reader a hyper-personalized news stream. An obvious issue with this is selection bias, and the possibility that one will end up consuming a very narrow slice of the perspective pie (read about the perils of algorithmic curation here). Also see the comments below Jarvis’s article for some interesting points made by readers.

(via futurejournalismproject)
the-actual-universe

sagansense:

Scientists Collect Over 100 Kilos Of Chelyabinsk Meteorite Pieces

Scientists have collected over 100 kilograms of fragments from the meteorite that blasted in the skies of the Chelyabinsk region, Russian Academy of Sciences Space Research Institute spokesman Yuri Zaitsev told Interfax-AVN on Friday.

"Several institutes of the Russian Academy of Sciences organized expeditions immediately after the [meteorite] event in order to collect meteorite samples and to study the drop zone. The total weight of collected meteorite fragments exceeds 100 kilograms, and the heaviest piece weighs 3.4 kilograms," he said.

Laboratory tests identified the Chelyabinsk meteorite as a LL5 chondrite (only 2 percent of regulate chondrite meteorites, which fall on the Earth, belong to this class, and the Chelyabinsk event is the largest of them), Zaitsev said.

The meteorite event occurred on February 15, 2013. The meteorite blasted above the Lake Chebarkul in the Chelyabinsk region.

The mass of the object, which hit the Earth atmosphere, was roughly estimated at 11,000 tons. It had a diameter of 16-20 meters, rammed the atmosphere at a speed of about 18 kilometers per second and fell into pieces at the altitude of approximately 23 kilometers.

Scientists presume the meteorite’s parent body belonged to the family of Apollo asteroids, a class of asteroids with Earth-crossing orbits. Its approximate age is 4.5 billion years. Isotope tests and the structure of meteorite fragments suggest that the parent body collided with another space object about 290 million years ago.

Source: RBTH

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P.S., The best gif I’ve seen so far of the meteor footage right here. For some reason I couldn’t upload it to this post, but check it out!