Astronomy April 2005

Astronomy April 2005

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ASTROBIOLOGY
Quest for a living universe
How do you search for extraterrestrial life when you donít know what it will look like? Some conditions for life may be universal, but the telltale signs of lifeís existence may not be that obvious. ALAN LONGSTAFF

COVER STORY
Titan touchdown
The Huygens probe plunged into the atmosphere of Saturnís moon Titan, showing Titan is a complex world with an intriguing landscape and possible flowing liquids. RICHARD TALCOTT

EXTRAGALACTIC ASTRONOMY
Darker than the night
Astronomers are scrambling to figure out galaxies that produce so few stars, and glow so dimly, they nearly disappear into the night sky. Amazingly, these oddballs could outnumber ďnormalĒ galaxies ten to one. BRUCE DORMINEY

EXTRAGALACTIC ASTRONOMY
Seeking the first galaxies
The Hubble Space Telescopeís million-second stare into space is our deepest look at the universe, but astronomers disagree over what it shows. Some argue it includes the earliest galaxies FRANK SIETZEN, JR.

ASTROPHOTOGRAPHY
Sharper photos with film
Reports of the death of film for astrophotography are exaggerated, so donít sell your single-lens reflex camera yet. Digital technology can help you create high-quality celestial images caught on film. JASON WARE

EQUIPMENT REVIEW
Binoculars under $100
Sometimes, observing is best with both eyes open. Binoculars are a great first step into astronomy ó learn how to choose a model thatís right for you at a price you canít resist. PHIL HARRINGTON



Astronomy, 2005, April


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