EarthSky News – November 27 – Experience Comet ISON Online

November 27
Experience Comet ISON Online
Experience Comet ISON’s encounter with the sun this week
ISON’s moment of truth is approaching – its closest point to the sun – on November 28. Here are some ways to experience it online.
Orion rises at mid-evening
Orion the Hunter – perhaps the easiest-to-identify of all constellations – rises at mid-evening in late November and early December.
Three questions about Comet ISON
The manager of NASA’s Near-Earth Object Program Office shares the low-down on the ISON’s holiday travel plans.
Google Earth reveals untold fish catches
Large fish traps in the Persian Gulf could be catching up to six times more fish than what’s being officially reported.
Even if emissions stop, carbon dioxide could warm Earth for centuries
Even if carbon dioxide emissions came to a sudden halt, the carbon dioxide already in Earth’s atmosphere could continue to warm our planet for hundreds of years.
today’s image
Jet contrail casts a shadow
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