Science, January 16, 2009

Cover
Hot dust clouds in the center of the Milky Way,
photographed by the Infrared Array Camera (IRAC) aboard the Spitzer
Space Telescope. The International Year of Astronomy gets under way
this week with opening ceremonies at UNESCO headquarters in Paris; Science marks the occasion with a special News Focus section.
Astronomy's Greatest Hits
In honor of the International Year of Astronomy, Science presents a timeline showing what we've learned in the 400 years since the invention of the telescope.
A Brief History of the Telescope
Writer/illustrator Larry Gonick and astronomer William Alschuler present a comic strip history of the telescope as part of Science's special Focus package commemorating the International Year of Astronomy.
Astronomy Hits the Big Time
Four hundred years after
the invention of the telescope, astronomy is flourishing. But even as
the discoveries keep coming, the field is rapidly evolving toward huge
telescopes, large collaborations, and -- alas -- bigger headaches.
Origin of Species in Overdrive
The genes that cause
the sterility of hybrids between species should reveal the molecular
genetic and evolutionary mechanisms that drive speciation.


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