December 2009: Hubble's great new images
The December 2009 Astronomy unveils the latest images from the repaired Hubble Space Telescope, explains what neutrinos can tell us about the universe, teaches beginners how to observe comets, and more. The issue also includes Astronomy's "Sky Guide 2010," a 16-page preview of next year's noteworthy sky events.
Liz Kruesi, Associate Editor
 Astronomy magazine December 2009 cover [View Larger Image] Senior Editor Richard Talcott describes Hubble's new instruments, shows off the first stunning images, provides an in-depth explanation of what the images and data show, and previews what's to come. Talcott writes, "Among the first observations scheduled is another Hubble Ultra Deep Field. ... Some researchers expect it to turn up galaxies within 500 million years of the Big Bang." For a complete look at the refurbished telescope, pick up the December issue of Astronomy, on newsstands now. "What can neutrinos tell us about the universe?" The elusive neutrino is a type of particle that has no electric charge and virtually no mass, and interacts weakly with matter. Frequent contributor James Trefil and his wife Wanda O'Brien-Trefil write how scientists first discovered neutrinos, what these particles can tell us about the universe, and how to detect the elusive particles. "Astronomy magazine's Sky Guide 2010" Martin Ratcliffe and Richard Talcott preview 2010's most noteworthy sky events in this 16-page pullout guide. Sky highlights for 2010 include:
December 2009 night-sky events visible without optical aid:
Also in the December 2009 Astronomy:
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