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Originally posted by Sentry- I highly doubt they would even allow weapons in space if they are truly benevolent and exist, which I think they would certainly be.
"The sun will burn out in due course, and we have to be off this planet if our species is to survive," he said. "At this point in human history on this planet, we're now starting, and should be, to reach out beyond our planet and then beyond our solar system to find out what is really going on out there."
Originally posted by reugen
That is some time frame, anything from last May 2009 +30 days to 5 billion years. Eventually, yes.
The current solar minimum is part of that pattern. In fact, it's right on time. "We're due for a bit of quiet—and here it is," says Pesnell.
But is it supposed to be this quiet? In 2008, the sun set the following records:
1. A 50-year low in solar wind pressure: Measurements by the Ulysses spacecraft reveal a 20% drop in solar wind pressure since the mid-1990s—the lowest point since such measurements began in the 1960s.
2. A 12-year low in solar "irradiance": Careful measurements by several NASA spacecraft show that the sun's brightness has dropped by 0.02% at visible wavelengths and 6% at extreme UV wavelengths since the solar minimum of 1996.