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Channel: Sky-Watching » carl sagan
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Voyager to enter Interstellar Space

by yaska77 Over 30 years after they left Earth, NASA’s twin Voyager probes are now on the edge of our solar system, and are still working! Launched in the late 1970s to take advantage of a rare...

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Ideal SETI-target planets and K-type stars

by tte-77 The Kepler-62 system – home to two habitable zone worlds. The small shining object to the right of Kepler-62f is Kepler-62e. Image credit: NASA Ames/JPL-Caltech. Its been far too long since I...

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