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Astro Bob blog: Solstice Aurora Coming? / Celestial Triple Treat / Wet Comet

A recent solar flare could mean auroras on Sunday, the first night of summer. We also have a sweet conjunction tonight plus fresh news from Rosetta's Comet and Pluto.

1808638+Sun CME June 18 aft SOHO.jpg
Photo taken by the orbiting Solar and Heliospheric Observatory on June 18 around 2 p.m., shows a blast cloud of solar particles - called a coronal mass ejection or CME - leaving the Sun in the wake of the flare that occurred in sunspot region 2371. The telescope uses a special mask that hides the glaring Sun from view. Credit: NASA/ ESA

A recent solar flare could mean auroras on Sunday, the first night of summer. We also have a sweet conjunction tonight plus fresh news from Rosetta's Comet and Pluto.

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