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More space news!


tkdguy

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Re: More space news!

 

Yeah, the injuries seem to be mostly people hurt by broken glass or bits of structure that was blown out by the blast wave.

 

Nuclear-class airburst (or larger; I'm now seeing estimates of 10 meter size) about a dozen kilometers up. Gonna rattle a lot of things.

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Re: More space news!

 

... And now' date=' Vladimir Zirinowskij, Russian nationalist politician and vice-speaker of the Duma, has claimed that it was, in fact, not a meteorite. It was US weapons experiment.[/quote']

 

"Russia Already Has Meteor Truthers" :lol:

 

http://www.slate.com/blogs/the_slatest/2013/02/15/russian_meteor_truthers_vladimir_zhirinovsky_claims_meteor_was_actually.html

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Re: More space news!

 

... And now' date=' Vladimir Zirinowskij, Russian nationalist politician and vice-speaker of the Duma, has claimed that it was, in fact, not a meteorite. It was US weapons experiment.[/quote']

 

It was a very early reaction; he had been reported to say that about 6am my time,before much in the way of real stuff was available to report.

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Re: More space news!

 

New transiting planet candidates are identified in 16 months (2009 May–2010 September) of data from the Kepler spacecraft. Nearly 5000 periodic transit-like signals are vetted against astrophysical and instrumental false positives yielding 1108 viable new planet candidates' date=' bringing the total count up to over 2300[/b']. ... The largest fractional increases [in number of new discovered planets] are seen for the smallest planet candidates (201% for candidates smaller than 2 R⊕ compared to 53% for candidates larger than 2 R⊕ ) and those at longer orbital periods (124% for candidates outside of 50 day orbits versus 86% for candidates inside of 50 day orbits). ... The fraction of all planet candidate host stars with multiple candidates has grown from 17% to 20%, and the paucity of short-period giant planets in multiple systems is still evident. The progression toward smaller planets at longer orbital periods with each new catalog release suggests that Earth-size planets in the habitable zone are forthcoming if, indeed, such planets are abundant.

 

Emphasis added by me. Just downloaded this paper and I'll be reading it today.

 

EDIT: They include a table of 24 planet candidates whose orbits + host star characteristics indicate planetary surface temperatures between 285 and 303 K. One is near Earth size (1.02 R⊕), seven in the range 1.25 - 2.0 R⊕, eleven 2 - 5 R⊕, three 5 - 12 R⊕, one at 20.8 R⊕. The one near Earth size candidate (KOI 2124.01) orbits a rather cool star (Teff = 4100, a spectral type around K6 to K7, which is close to 61 Cygni B).

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