Sky & Telescope's Weekly Bulletin - Dec 19

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Sky & Telescope's Weekly Bulletin - December 18, 2008
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News
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Dark Energy: Yes, It's Real-- and Overwhelming
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December 18, 2008 | The universe just isn't making galaxy clusters
the way it used to. Compelling new evidence argues that "dark energy"
has overwhelmed gravity's influence on forming these largest cosmic
structures.
Read More at: http://www.skyandtelescope.com/commu.../36372969.html

Remembering Steven Ostro
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December 18, 2008 | On December 15, 2008, planetary science lost one
of most gifted and passionate practitioners -- a radar astronomer
whose work greatly improved our knowledge of near-Earth asteroids.
Read More at: http://www.skyandtelescope.com/commu.../36421054.html

Tycho's Supernova in Reruns
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December 12, 2008 | 436-year-old light echoes give a look today at a
blast in the Renaissance past. The catch? They're only a twenty-
billionth as bright as the original.
Read More at: http://www.skyandtelescope.com/news/36062239.html

Time for Another "Leap Second"
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December 16, 2008 | For the first time since 2005, the world's
official timekeepers will add an extra second to the clock on New
Year's Eve.
Read More at: http://www.skyandtelescope.com/commu.../36234159.html


This Week's Sky at a Glance
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December 19, 2008 | Venus shines brighter and higher in the
southwestern twilight; Jupiter sinks lower. After dark, Orion season
is now in full force. And at dawn, Saturn's rings are nearly edge on.
Read More at: http://www.skyandtelescope.com/obser.../36393409.html


Monthly Podcast
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Tour December's Sky by Eye and Ear!
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November 30, 2008 | After listening to this podcast, you'll have no
trouble spotting Venus, Jupiter, the Pleiades star cluster, and much
more in the evening sky! Host: S&T's Kelly Beatty. (5MB MP3 download:
running time: 5m 47s)
Read More at: http://www.skyandtelescope.com/obser.../35292524.html


Last-Minute Shoppers!
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Gift Subscription
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A year of Sky & Telescope is the perfect gift. Order a
subscription online.
https://secure.palmcoastd.com/pcd/do...ikey=03401FAWB


Now in Stock!
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Beautiful Universe 2009
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Special Edition for the International Year of Astronomy!
http://www.shopatsky.com/products/U8...rse%202009.htm


Limited Quantities!
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Astronomical Calendar 2009
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Guy Ottewell's legendary calendar for the upcoming year.
http://www.shopatsky.com/productdetail/AC2009.htm


Get Ready for the New Year!
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SkyWatch 2009
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Your observing guide for 2009 from the editors of Sky & Telescope.
http://www.shopatsky.com/products/U8...tch%202009.htm


T-shirts, Mugs & More!
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S&T Logo Items
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New sweatshirts added!
http://www.skyandtelescope.com/logo

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Associate Editor http://SkyandTelescope.com
Sky & Telescope Magazine
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