Mirrors on the Moon could catch alien eyes


	Mirrors on the Moon could catch alien eyes

Silkweaver

5-4-2008 8:52 PM

350 views

tags:

astronomy, astrobiology, seti

Silkweaver says:

On a second thought, it sounds somewhat silly

1 Comment |

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5-5-2008 5:54 AM

syncopath

To improve the chances of being found

it feels a bit like: being lost ...................................

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/1a085c27-0f83-495c-b254-9bbe126cfc56/6082C999-2F26-4BEE-A962-57BC9A851FC8/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://space.newscientist.com/article/mg19826535.200-mirrors-on-the-moon-could-catch-alien-eyes.html" href="http://space.newscientist.com/article/mg19826535.200-mirrors-on-the-moon-could-catch-alien-eyes.html" style="font-size: 11px;">space.newscientist.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://space.newscientist.com/article/mg19826535.200-mirrors-on-the-moon-could-catch-alien-eyes.html">Mounting mirrors on the Moon and using them to signal across space could let ET know we Earthlings are here.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://space.newscientist.com/article/mg19826535.200-mirrors-on-the-moon-could-catch-alien-eyes.html">Ever since radio broadcasts began we've been trumpeting our presence to nearby parts of the galaxy, so far without reply. To improve the chances of being found, Shawn Domagal-Goldman and Jacob Haqq-Misra of Pennsylvania State University in State College reckon we should cover half of the Moon with mirrors.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://space.newscientist.com/article/mg19826535.200-mirrors-on-the-moon-could-catch-alien-eyes.html">When angled to catch the Sun's rays, the mirrors would increase the amount of light the Earth-moon system reflects by 20%, they say, more than enough to catch the eye of a vigilant alien astronomer. Domagal-Goldman proposes using a code of prime number flashes - just as aliens used to get in touch in Carl Sagan's book <I>Contact</I>. This will ensure the flashes aren't mistaken for natural variations in brightness.</blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/6082C999-2F26-4BEE-A962-57BC9A851FC8/blog/" title="blog or email this clip"><img src="http://content8.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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