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Off-Topic Discussion => General Discussion => Topic started by: Kosh on June 20, 2010, 03:27:39 am

Title: Largest telescope EVAR
Post by: Kosh on June 20, 2010, 03:27:39 am
 Amazing piece of engineering (http://www.physorg.com/news195646232.html)


Quote
The LOFAR (LOw Frequency ARray) consists of 25,000 small antennas measuring between 50 centimetres and two metres across, instead of a traditional large dish, said Femke Boekhorst of the Netherlands Radioastronomy Institute.

It is based near the northeastern Dutch town of Assen, but the antennas are spread out across the rest of the Netherlands and also in Germany, Sweden, France and Britain.

"Today we have launched the biggest radiotelescope in the world. When you combine all the antennas you get a giant telescope with a diameter of about 1,000 kilometres (600 miles)," Boekhorst told AFP.

"The observations that we will be able to make will allow us to learn more about the origin of the universe, back to the moment right after the Big Bang," she added.

The data gathered by the telescope will be dealt with by a supercomputer at the university of Groningen and then transmitted to the institute.


Way cool.
Title: Re: Largest telescope EVAR
Post by: watsisname on June 20, 2010, 03:49:37 am
Radio astronomy is serious business.

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NASA image shows clusters of stars. Scientists in the Netherlands unveiled the largest radiotelescope in the world on Saturday, saying it was capable of detecting faint signals from almost as far back as the Big Bang.

How vague. :/  I wish they'd specify whether that's supposed to be before or after the moment of recombination / birth of the cosmic microwave background radiation.  I guess I've got some reading to do.

Edit:  Oh there we go, they're specifically looking at the era of reionization (when the first quasars/stars? reionized the hydrogen, roughly 1x108 to 1x109 years after the big bang).  And some other random stuff is in the works too.  Cool beans.
Title: Re: Largest telescope EVAR
Post by: FreeSpaceFreak on June 20, 2010, 09:26:18 am
Heh, the Dutchies have the biggest one again.
Title: Re: Largest telescope EVAR
Post by: Black Wolf on June 20, 2010, 10:10:39 am
Just wait til we get the SKA going down here. :D

Until then, this is pretty cool.
Title: Re: Largest telescope EVAR
Post by: Flipside on June 20, 2010, 04:28:50 pm
Apparently, it's possible to do this with optics as well, which could be fascinating :)
Title: Re: Largest telescope EVAR
Post by: FUBAR-BDHR on June 20, 2010, 11:55:20 pm
Which one is the one in space?  Now that is a big one.