October guide to the bright planets | | A lone planet - Saturn - is easily seen at nightfall. Mars and Venus are up before dawn. Mercury and Jupiter can't be seen easily; they're in the sun's glare. | | |
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New Horizons' discoveries keep coming | | New ScienceCast video on recent results from New Horizons spacecraft data. Landslides on Charon. Possible snow on Pluto. Plus a preview of New Horizons' next target. | | |
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