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 "Starshade" proposed to find extrasolar earths
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HalfMooner
Dingaling

Philippines
15831 Posts

Posted - 07/05/2006 :  22:36:12  Show Profile Send HalfMooner a Private Message
This idea seems a simple and practical way to view extrasolar planets, without having to hope for a local planet to wander by just so to provide occlusion:
quote:
'Starshade' may aid space exploration

Wednesday, July 5, 2006; Posted: 12:02 p.m. EDT (16:02 GMT)


The 'starshade' would use thrusters to move
into the line of sight of distant stars.


LONDON, England (Reuters) -- A huge daisy-shaped shield that would block out light from parent stars could be used to find Earth-like planets in other solar systems, an American astronomer said on Wednesday.

He and his team have designed a plastic "starshade" measuring 50 yards (45 meters) in diameter that would orbit in tandem with a trailing telescope and block out light from parent stars to enable scientists to map planetary systems.

. . .



More at: http://www.cnn.com/2006/TECH/space/07/05/space.shield.reut/index.html


Biology is just physics that has begun to smell bad.” —HalfMooner
Here's a link to Moonscape News, and one to its Archive.

JohnOAS
SFN Regular

Australia
800 Posts

Posted - 07/06/2006 :  16:18:38   [Permalink]  Show Profile  Visit JohnOAS's Homepage Send JohnOAS a Private Message
quote:
Originally posted by HalfMooner

This idea seems a simple and practical way to view extrasolar planets, without having to hope for a local planet to wander by just so to provide occlusion:[quote]'Starshade' may aid space exploration


Nice stuff, here is a link to a New Scientist article on the same proposal. It was also mentioned on one of the podcasts, I'm pretty sure it was the New Scientist one, but I can't remember the date, I'll see if I can dig it up.

Makes me feel sad for those who feel we shouldn't be doing anything out of the planet until we've solved all our problems "down here". I fear we'd be waiting a while, even if all the worlds space exploration / astronomy budgets were diverted elsewhere.

John's just this guy, you know.
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HalfMooner
Dingaling

Philippines
15831 Posts

Posted - 07/06/2006 :  17:50:06   [Permalink]  Show Profile Send HalfMooner a Private Message
Thanks, John, that was a much better link.


Biology is just physics that has begun to smell bad.” —HalfMooner
Here's a link to Moonscape News, and one to its Archive.
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