Flying at 235km will allow little margin for error, especially if the Sun becomes more active.
When the Sun becomes more active, this isotope becomes more abundant along with beryllium, another radioactive element.
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When the sun is very active, it can be thought of as pushing away cosmic rays from the Earth, reducing their incidence.
As mentioned, carbon-14 is radioactive, and as the Sun becomes more active (interglacial times) so does the amount of the radioactive carbon-14.
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The sun is in an active phase of its current 11-year weather cycle, which scientists call Solar Cycle 24.
When the sun is at its most active, which is when it is spotty, the solar wind is stronger and fewer cosmic rays penetrate.
The sun is currently in an active phase of its 11-year solar cycle, and it should continue to fire off big storms for a while yet.
Global warming advocates have responded, in turn, that while the sun has indeed been more active in the last half of the century, the actual percentage change in solar irradiance is tiny, and hardly seems large enough to explain measured increases in temperatures and ocean heat content.
It is extremely rare on earth as it is created during very active nuclear reactions, most commonly found on the surface of the sun, but here can only be found as a by-product of the maintenance of nuclear weapons.
But the group became active again Monday, claiming responsibility for hacking the British newspaper The Sun in retaliation for the unexplained death of a whistleblower who first revealed the phone hacking practices of News Corp. sister paper News Of The World.
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Sun, of course, is touting Java's cross-platform nature in the active appliance arena.
Finnerty never got into a regular season game, though -- as the Baltimore Sun reported -- he was called up from the practice squad and put on the Ravens' active roster in December 2007.
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