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Arecibo Telescope could help it discover Galaxies.


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Arecibo Telescope could help it discover Galaxies.
Arecibo Telescope could help it discover Galaxies.

Our Great Universe - news - Feb 7 - 13, 2005.

This will be a wonderful week as we begin by viewing the spectacular "Kemble's Cascade". Looking for some challenging studies? Then while New Moon is on our side, let's go for some serious hunting in the constellations of Pisces, Lepus, Canis Major, Cetus and Puppis. You can do them in one night if you try! Comet Machholz rounds off the week as the Moon returns. So start with binoculars and break out the "heavy artillery" for the faint stuff. Enjoy a leisurely Comet hunt or lunar viewing week end...

Because here's what's up!

Galaxies Might Exist Without Stars.

Engineers have outfitted the National Science Foundation's (NSF) Arecibo Observatory telescope with a new instrument that could help it discover Galaxies that have no stars - so called "dark galaxies". The instrument is called ALFA (for Arecibo L-Band Feed Array), which is essentially a seven-pixel digital camera, which allows the radio telescope to receive data seven times as fast. Researchers will explore groups of galaxies, and determine how fast they're converting gas into stars. It should be able to discover if there are gas-rich regions, invisible to optical telescopes, which can be detected by their Hydrogen signature.

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