Tag: comet

Comet ISON STEREO solar pass

Update: Comet ISON beyond the Sun

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Laura Nielsen for Frontier Scientists – Last Thursday, while many gathered with loved ones for Thanksgiving, a frozen ball of ice and rock was hurtling towards the Sun reaching speeds of 225 miles/second [360 kilometers/second]. A fleet of solar-observing spacecraft had their instruments aligned, and experts were on hand to watch what unfolded. We wondered […]

SOHO images Comet Ison's aproach to the sun Nov 2013

Comet ISON approaches the Sun

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Laura Nielsen for Frontier Scientists – Our patch of universe has a visitor from afar. Comet C/2012 S1 (ISON), or Comet ISON, has astronomers across the world training telescopes and eager eyes on outer space. Don Yeomans, manager of NASA’s Near-Earth Object Program Office, watches for objects whose orbits come close to Earth. He says ISON […]