Black Holes Are Everywhere!


	Black Holes Are Everywhere!

Marcariel

11-10-2007 2:25 PM

305 views

tags:

astronomy, black holes, galaxies, space dust, big bang

Marcariel says:

So when do we all get swallowed up by a giant black hole? There is a black hole reportedly at the center of our own galaxy.

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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/5308069b-28c0-4959-a28a-cac90428d4bc/C505CCFA-E9BE-4F82-9028-069E385CA089/" 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://time-blog.com/eye_on_science/2007/10/black_holes_galore_1.html" href="http://time-blog.com/eye_on_science/2007/10/black_holes_galore_1.html" style="font-size: 11px;">time-blog.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://time-blog.com/eye_on_science/2007/10/black_holes_galore_1.html"><div align="center"><img src="http://content9.clipmarks.com/blog_cache/www.time-blog.com/img/84789E01-2044-4AFC-9C30-CE7FC0AF8338" alt="blackholes1.jpg" /></div></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://time-blog.com/eye_on_science/2007/10/black_holes_galore_1.html">The circled galaxies all contain giant black holes. / NASA/JPL-Caltech/ Commissariat a l'Energie Atomique</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://time-blog.com/eye_on_science/2007/10/black_holes_galore_1.html">Theory says that most of the galaxies formed shortly after the Big Bang should have giant black holes lurking in their cores--but until now, astronomers haven't seen much evidence. You can't see a black hole directly, but when gas falls into its voraciously powerful gravitational field, the gas heats up and glows brilliantly. Except that so far, it hasn't, as far as observers could tell.</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://time-blog.com/eye_on_science/2007/10/black_holes_galore_1.html">
But it turns out that at least some black holes have been blazing all along; they were just shrouded by dust. It took the infrared-sensitive Spitzer Space Telescope to peer through the dust, and the Chandra X-Ray Observatory (also in space) to find the telltale X-rays that betray the presence of super-hot gas that surrounds the black holes.</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://time-blog.com/eye_on_science/2007/10/black_holes_galore_1.html">
That's one mystery down. Luckily for science reporters, there are always more.</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/C505CCFA-E9BE-4F82-9028-069E385CA089/blog/" title="blog or email this clip"><img src="http://content6.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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