See how the shredded remains of galaxies that still surround their larger "hosts" tell stories of cosmic gluttonyimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/ab077bd/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Deep+images+reveal+the+shady+past+of+cannibal+galaxieslink=http%3A%2F%2Fwww.newscientist.com%2Fgallery%2Fthe-best-images-of-galactic-gluttony%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Deep+images+reveal+the+shady+past+of+cannibal+galaxieslink=http%3A%2F%2Fwww.newscientist.com%2Fgallery%2Fthe-best-images-of-galactic-gluttony%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/div

Tidal streams ndash; torn-up remains of other galaxies ndash; were first found around the Milky Way. Now astronomers aim to see how common they are elsewhereimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/aa129a9/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Hunting+for+scraps+from+galactic+cannibal+feastslink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fdn18940-hunting-for-scraps-from-galactic-cannibal-feasts.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Hunting+for+scraps+from+galactic+cannibal+feastslink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fdn18940-hunting-for-scraps-from-galactic-cannibal-feasts.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/70096249781/u/60/f/10897/c/749/s/178334121/a2.htm"img src="http://da.feedsportal.com/r/70096249781/u/60/f/10897/c/749/s/178334121/a2.img" border="0"//a

The safety limits for aircraft flying through volcanic ash are creeping up, but we're no closer to knowing for sure what levels are permissibleimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/aa10a1d/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Wanted%3A+hard+facts+on+how+volcanic+ash+affects+jetslink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fdn18939-wanted-hard-facts-on-how-volcanic-ash-affects-jets.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Wanted%3A+hard+facts+on+how+volcanic+ash+affects+jetslink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fdn18939-wanted-hard-facts-on-how-volcanic-ash-affects-jets.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/70096151838/u/60/f/10897/c/749/s/178326045/a2.htm"img src="http://da.feedsportal.com/r/70096151838/u/60/f/10897/c/749/s/178326045/a2.img" border="0"//a

An international report concludes that a "pillar" of water caused by a North Korean torpedo ripped a South Korean ship in two, says Richard Fisherimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/aa0fabc/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Deadly+bubble+jet+sank+South+Korea%27s+warshiplink=http%3A%2F%2Fwww.newscientist.com%2Fblogs%2Fshortsharpscience%2F2010%2F05%2Fdeadly-bubble-jet.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Deadly+bubble+jet+sank+South+Korea%27s+warshiplink=http%3A%2F%2Fwww.newscientist.com%2Fblogs%2Fshortsharpscience%2F2010%2F05%2Fdeadly-bubble-jet.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/70096150030/u/60/f/10897/c/749/s/178322108/a2.htm"img src="http://da.feedsportal.com/r/70096150030/u/60/f/10897/c/749/s/178322108/a2.img" border="0"//a

If the truth is inconvenient, put up a smokescreen instead. It works wonders for big business, argues bRichard Littlemore/bimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/aa0b50a/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Living+in+denial%3A+How+corporations+manufacture+doubtlink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20627606.200-living-in-denial-how-corporations-manufacture-doubt.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Living+in+denial%3A+How+corporations+manufacture+doubtlink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20627606.200-living-in-denial-how-corporations-manufacture-doubt.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/70096149237/u/60/f/10897/c/749/s/178304266/kg/6-27-40-63/a2.htm"img src="http://da.feedsportal.com/r/70096149237/u/60/f/10897/c/749/s/178304266/kg/6-27-40-63/a2.img" border="0"//a

Change the finish of a photo without changing itimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/a9f4bb4/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Illusions+contest%3A+Non-glossy+glosslink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fdn18905-illusions-contest-nonglossy-gloss.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Illusions+contest%3A+Non-glossy+glosslink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fdn18905-illusions-contest-nonglossy-gloss.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/70096164581/u/60/f/10897/c/749/s/178211764/kg/63/a2.htm"img src="http://da.feedsportal.com/r/70096164581/u/60/f/10897/c/749/s/178211764/kg/63/a2.img" border="0"//a

What would the Higgs boson sound like? Through a process called sonification, Lily Asquith is trying to find outimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/a9f4bb5/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=LHCsound%3A+Listening+to+the+God+particlelink=http%3A%2F%2Fwww.newscientist.com%2Fblogs%2Fculturelab%2F2010%2F05%2Flistening-to-the-god-particle.php%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=LHCsound%3A+Listening+to+the+God+particlelink=http%3A%2F%2Fwww.newscientist.com%2Fblogs%2Fculturelab%2F2010%2F05%2Flistening-to-the-god-particle.php%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/70096164580/u/60/f/10897/c/749/s/178211765/a2.htm"img src="http://da.feedsportal.com/r/70096164580/u/60/f/10897/c/749/s/178211765/a2.img" border="0"//a

Claims that the famous fatty acids can fix innumerable health problems – and cut murder rates into the bargain – take some swallowingimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/a9e9de4/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Omega-3%3A+Fishy+claims+for+fish+oillink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20627601.400-omega3-fishy-claims-for-fish-oil.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Omega-3%3A+Fishy+claims+for+fish+oillink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20627601.400-omega3-fishy-claims-for-fish-oil.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/70096132927/u/60/f/10897/c/749/s/178167268/kg/42-43/a2.htm"img src="http://da.feedsportal.com/r/70096132927/u/60/f/10897/c/749/s/178167268/kg/42-43/a2.img" border="0"//a