Copyright (c) 2009 Yahoo! Inc. All rights reserved. http://news.yahoo.com/i/1768 Most Recommended Science en-us Fri, 03 Jul 2009 16:45:59 GMT 5 142 18 http://news.yahoo.com/i/1768 http://l.yimg.com/a/i/us/nws/th/main_142b.gif http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/livescience/whatsupersoniclookslike livescience/20090630/whatsupersoniclookslike LiveScience.com science Tue, 30 Jun 2009 13:35:28 GMT <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/livescience/whatsupersoniclookslike"><img src="http://d.yimg.com/a/p/rids/20090629/i/r3626269604.jpg?x=93&y=130&q=85&sig=Iky6CZv1C7_0lZlz7vkxPA--" align="left" height="130" width="93" alt="A U.S. Air Force F-22 Raptor executes a supersonic flyby over the flight deck of the aircraft carrier USS John C. Stennis (CVN 74) in the Gulf of Alaska, in this handout photo taken on June 22, 2009. The John C. Stennis is participating in Northern Edge 2009, a joint exercise focusing on detecting and tracking units at sea, in the air and on land. Picture taken on June 22, 2009. REUTERS/Ronald Dejarnett/U.S. Navy/Handout (UNITED STATES MILITARY SOCIETY TRANSPORT IMAGES OF THE DAY) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS" border="0" /></a>LiveScience.com - The breaking of the sound barrier is not just an audible phenomenon. As a new picture from the U.S. military shows, Mach 1 can be quite visual.</p><br clear="all"/> <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/livescience/whatsupersoniclookslike"><img src="http://d.yimg.com/a/p/rids/20090629/i/r3626269604.jpg?x=93&y=130&q=85&sig=Iky6CZv1C7_0lZlz7vkxPA--" align="left" height="130" width="93" alt="photo" title="A U.S. Air Force F-22 Raptor executes a supersonic flyby over the flight deck of the aircraft carrier USS John C. Stennis (CVN 74) in the Gulf of Alaska, in this handout photo taken on June 22, 2009. The John C. Stennis is participating in Northern Edge 2009, a joint exercise focusing on detecting and tracking units at sea, in the air and on land. Picture taken on June 22, 2009. REUTERS/Ronald Dejarnett/U.S. Navy/Handout (UNITED STATES MILITARY SOCIETY TRANSPORT IMAGES OF THE DAY) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS" border="0"/></a></p><br clear="all"/> (LiveScience.com) http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/afp/spaceastronomyblackhole afp/20090701/spaceastronomyblackhole AFP science Wed, 01 Jul 2009 17:12:49 GMT <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/afp/spaceastronomyblackhole"><img src="http://d.yimg.com/a/p/afp/20090701/capt.photo_1246468347352-1-0.jpg?x=130&y=92&q=85&sig=gGQpExqRHbjrcF_jBCNRuA--" align="left" height="92" width="130" alt="Astronomers on Wednesday said they had identified an intermediate class of black hole that could explain how supermassive, light-sucking monsters develop in the heart of galaxies.(AFP/NASA-HO/FIle)" border="0" /></a>AFP - Astronomers on Wednesday said they had identified an intermediate class of black hole that could explain how supermassive, light-sucking monsters develop in the heart of galaxies.</p><br clear="all"/> <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/afp/spaceastronomyblackhole"><img src="http://d.yimg.com/a/p/afp/20090701/capt.photo_1246468347352-1-0.jpg?x=130&y=92&q=85&sig=gGQpExqRHbjrcF_jBCNRuA--" align="left" height="92" width="130" alt="photo" title="Astronomers on Wednesday said they had identified an intermediate class of black hole that could explain how supermassive, light-sucking monsters develop in the heart of galaxies.(AFP/NASA-HO/FIle)" border="0"/></a></p><br clear="all"/> (AFP) http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/livescience/tinynewbatteryisprintable livescience/20090702/tinynewbatteryisprintable LiveScience.com science Thu, 02 Jul 2009 17:11:05 GMT LiveScience.com - A new battery, small and thin, weighs almost nothing and can be printed in a process similar to silk-screening shirts. http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/livescience/volcanoseruptioncreatescolorfulussunsets livescience/20090701/volcanoseruptioncreatescolorfulussunsets LiveScience.com science Wed, 01 Jul 2009 15:10:42 GMT <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/livescience/volcanoseruptioncreatescolorfulussunsets"><img src="http://d.yimg.com/a/p/ap/20090624/capt.246e0a984fe942eb92cf23b3e346f480.space_station_volcano_ny109.jpg?x=130&y=85&q=85&sig=19YzlfCKKDsgH5yP00joNg--" align="left" height="85" width="130" alt="In this image provided by NASA a fortuitous orbit of the International Space Station allowed the astronauts this striking view of Sarychev volcano, in Russia's Kuril Islands, northeast of Japan, in an early stage of eruption on June 12, 2009. The main column is one of a series of plumes that rose above Matua Island on June 12. The plume appears to be a combination of brown ash and white steam. The vigorously rising plume gives the steam a bubble-like appearance; the surrounding atmosphere has been shoved up by the shock wave of the eruption. The smooth white cloud on top may be water condensation that resulted from rapid rising and cooling of the air mass above the ash column, and is probably a transient feature. The structure also indicates that little to no shearing winds were present at the time to disrupt the plume. (AP Photo/NASA)" border="0" /></a>LiveScience.com - Many people in the United States and Europe are seeing gorgeous lavender sunsets lately thanks to the eruption more than two weeks ago of Russia's Sarychev Peak volcano.</p><br clear="all"/> <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/livescience/volcanoseruptioncreatescolorfulussunsets"><img src="http://d.yimg.com/a/p/ap/20090624/capt.246e0a984fe942eb92cf23b3e346f480.space_station_volcano_ny109.jpg?x=130&y=85&q=85&sig=19YzlfCKKDsgH5yP00joNg--" align="left" height="85" width="130" alt="photo" title="In this image provided by NASA a fortuitous orbit of the International Space Station allowed the astronauts this striking view of Sarychev volcano, in Russia's Kuril Islands, northeast of Japan, in an early stage of eruption on June 12, 2009. The main column is one of a series of plumes that rose above Matua Island on June 12. The plume appears to be a combination of brown ash and white steam. The vigorously rising plume gives the steam a bubble-like appearance; the surrounding atmosphere has been shoved up by the shock wave of the eruption. The smooth white cloud on top may be water condensation that resulted from rapid rising and cooling of the air mass above the ash column, and is probably a transient feature. The structure also indicates that little to no shearing winds were present at the time to disrupt the plume. (AP Photo/NASA)" border="0"/></a></p><br clear="all"/> (LiveScience.com) http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/ap/us_sci_moon_rocket ap/20090630/us_sci_moon_rocket AP science Tue, 30 Jun 2009 21:17:44 GMT <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/ap/us_sci_moon_rocket"><img src="http://d.yimg.com/a/p/ap/20090630/capt.64834f5999304881a3a3faaf2915ef10.moon_rocket_ny116.jpg?x=118&y=130&q=85&sig=FyUl9ki9NAyL32j0punGoQ--" align="left" height="130" width="118" alt="This undated artist's rendering released by NASA shows the Ares I crew launch vehicle during launch and the Ares V cargo launch vehicle on the launch pad. Officially, the space agency is still on track with a 4-year-old plan to spend $35 billion to build new rockets and return astronauts to the moon in several years. However, a top NASA manager is floating a cut-rate alternative that costs around $6.6 billion. (AP Photo/NASA)" border="0" /></a>AP - Like a car salesman pushing a luxury vehicle that the customer no longer can afford, NASA has pulled out of its back pocket a deal for a cheaper ride to the moon.</p><br clear="all"/> <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/ap/us_sci_moon_rocket"><img src="http://d.yimg.com/a/p/ap/20090630/capt.64834f5999304881a3a3faaf2915ef10.moon_rocket_ny116.jpg?x=118&y=130&q=85&sig=FyUl9ki9NAyL32j0punGoQ--" align="left" height="130" width="118" alt="photo" title="This undated artist's rendering released by NASA shows the Ares I crew launch vehicle during launch and the Ares V cargo launch vehicle on the launch pad. Officially, the space agency is still on track with a 4-year-old plan to spend $35 billion to build new rockets and return astronauts to the moon in several years. However, a top NASA manager is floating a cut-rate alternative that costs around $6.6 billion. (AP Photo/NASA)" border="0"/></a></p><br clear="all"/> (AP) http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/afp/australiaanimalwhale afp/20090630/australiaanimalwhale AFP science Tue, 30 Jun 2009 16:10:05 GMT <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/afp/australiaanimalwhale"><img src="http://d.yimg.com/a/p/afp/20090701/capt.photo_1246372351556-2-0.jpg?x=130&y=86&q=85&sig=1U7VaY0qTCcD.ul80nwzsA--" align="left" height="86" width="130" alt="Facts on the humpback whale. Australian officials on Tuesday warned the public to stay away from "Migaloo," a much-loved white humpback whale who has reappeared off the eastern coast.(AFP/Graphic)" border="0" /></a>AFP - Australian officials on Tuesday warned the public to stay away from "Migaloo," a much-loved white humpback whale who has reappeared off the eastern coast.</p><br clear="all"/> <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/afp/australiaanimalwhale"><img src="http://d.yimg.com/a/p/afp/20090701/capt.photo_1246372351556-2-0.jpg?x=130&y=86&q=85&sig=1U7VaY0qTCcD.ul80nwzsA--" align="left" height="86" width="130" alt="photo" title="Facts on the humpback whale. Australian officials on Tuesday warned the public to stay away from "Migaloo," a much-loved white humpback whale who has reappeared off the eastern coast.(AFP/Graphic)" border="0"/></a></p><br clear="all"/> (AFP) http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/nm/us_australia_dinosaurs nm/20090703/us_australia_dinosaurs Reuters science Fri, 03 Jul 2009 16:45:59 GMT <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/nm/us_australia_dinosaurs"><img src="http://d.yimg.com/a/p/afp/20090703/capt.photo_1246609387228-1-0.jpg?x=130&y=43&q=85&sig=suSrZA5Be68oSp9Ns96ydg--" align="left" height="43" width="130" alt="A handout image released by the Australian Age of Dinosaurs Museum of Natural History shows 'Banjo' Australovenator wintonensis. Australian scientists hailed the country's most significant dinosaur discovery in decades on Friday after three new species were unearthed in a Queensland billabong.(AFP/Travis Tischler)" border="0" /></a>Reuters - Fossils of three new species of dinosaurs have been discovered in Australia, including a meat-eater larger than Velociraptor from the Jurassic Park movies, suggesting Australia may have a more complex prehistoric past.</p><br clear="all"/> <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/nm/us_australia_dinosaurs"><img src="http://d.yimg.com/a/p/afp/20090703/capt.photo_1246609387228-1-0.jpg?x=130&y=43&q=85&sig=suSrZA5Be68oSp9Ns96ydg--" align="left" height="43" width="130" alt="photo" title="A handout image released by the Australian Age of Dinosaurs Museum of Natural History shows 'Banjo' Australovenator wintonensis. Australian scientists hailed the country's most significant dinosaur discovery in decades on Friday after three new species were unearthed in a Queensland billabong.(AFP/Travis Tischler)" border="0"/></a></p><br clear="all"/> (Reuters) http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/ap/us_sci_shrinking_sheep ap/20090702/us_sci_shrinking_sheep AP science Thu, 02 Jul 2009 18:14:01 GMT <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/ap/us_sci_shrinking_sheep"><img src="http://d.yimg.com/a/p/afp/20090702/capt.photo_1246561787308-1-0.jpg?x=130&y=82&q=85&sig=9md6RMfZwpJTXcPB7XudFA--" align="left" height="82" width="130" alt="Soay sheep are seen in France in 2004. Climate change has caused a flock of wild sheep on a remote northern Scottish island to become smaller, according to an unusual investigation published on Thursday. The wild Soay sheep live on Hirta, in the St. Kilda archipelago in the storm-battered Outer Hebrides, and have been closely studied for nearly a quarter of a century.(AFP/File)" border="0" /></a>AP - Like the wool sweater that emerges from the dryer a size too small, global warming seems to be shrinking sheep.</p><br clear="all"/> <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/ap/us_sci_shrinking_sheep"><img src="http://d.yimg.com/a/p/afp/20090702/capt.photo_1246561787308-1-0.jpg?x=130&y=82&q=85&sig=9md6RMfZwpJTXcPB7XudFA--" align="left" height="82" width="130" alt="photo" title="Soay sheep are seen in France in 2004. Climate change has caused a flock of wild sheep on a remote northern Scottish island to become smaller, according to an unusual investigation published on Thursday. The wild Soay sheep live on Hirta, in the St. Kilda archipelago in the storm-battered Outer Hebrides, and have been closely studied for nearly a quarter of a century.(AFP/File)" border="0"/></a></p><br clear="all"/> (AP) http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/nm/us_pope_science nm/20090702/us_pope_science Reuters science Thu, 02 Jul 2009 16:11:27 GMT Reuters - The Catholic Church should not fear scientific progress and possibly repeat the mistake it made when it condemned astronomer Galileo in the 17th century, a Vatican official said on Thursday in a rare self-criticism. http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/livescience/whenwasthe4thofjulyfirstcelebrated livescience/20090703/whenwasthe4thofjulyfirstcelebrated LiveScience.com science Fri, 03 Jul 2009 13:30:54 GMT <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/livescience/whenwasthe4thofjulyfirstcelebrated"><img src="http://d.yimg.com/a/p/ap/20090702/capt.81113208751c4c9aa27867e7f6dcfd03.oldest_july_4_celebration_risr102.jpg?x=130&y=84&q=85&sig=Q3n5HzmMYPBdgViZcCBTPA--" align="left" height="84" width="130" alt="Michelle DaSilva ties decorations to the frame of a soccer-themed float while helping family members and friends prepare for the annual Independence Day parade in Bristol, R.I., Monday, June 30, 2009. Bristol residents have marked July 4th every year since 1785, allowing the town to lay claim to the nation's oldest Independence Day celebration. (AP Photo/Steven Senne)" border="0" /></a>LiveScience.com - John Adams predicted in a letter to his wife Abigail that Americans would celebrate their Independence Day on July 2. Off by two days - not too bad for government work.</p><br clear="all"/> <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/livescience/whenwasthe4thofjulyfirstcelebrated"><img src="http://d.yimg.com/a/p/ap/20090702/capt.81113208751c4c9aa27867e7f6dcfd03.oldest_july_4_celebration_risr102.jpg?x=130&y=84&q=85&sig=Q3n5HzmMYPBdgViZcCBTPA--" align="left" height="84" width="130" alt="photo" title="Michelle DaSilva ties decorations to the frame of a soccer-themed float while helping family members and friends prepare for the annual Independence Day parade in Bristol, R.I., Monday, June 30, 2009. Bristol residents have marked July 4th every year since 1785, allowing the town to lay claim to the nation's oldest Independence Day celebration. (AP Photo/Steven Senne)" border="0"/></a></p><br clear="all"/> (LiveScience.com) http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/space/newmoonorbitersendsfirstlunarsnapshots space/20090703/newmoonorbitersendsfirstlunarsnapshots SPACE.com science Fri, 03 Jul 2009 02:01:36 GMT SPACE.com - NASA's newest spacecraft in orbit around the moon has sent its first snapshots of the lunar surface. http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/livescience/thestrangeingredientsinfireworks livescience/20090702/thestrangeingredientsinfireworks LiveScience.com science Thu, 02 Jul 2009 20:50:51 GMT <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/livescience/thestrangeingredientsinfireworks"><img src="http://d.yimg.com/a/p/ap/20090702/capt.b85669eccfdf469b8680df6a2cb5d10c.frugal_fourth_waet203.jpg?x=130&y=76&q=85&sig=5YGnWDzm7T4hHgZTchehug--" align="left" height="76" width="130" alt="This June 30, 2009 photo shows Justin Yelle carrying fireworks for a customer at 'Boom City,' a collection of fireworks stands on the Tulalips Tribes' reservation near Marysville, Wash. The operators of thousands of fireworks stands on Indian reservations and in parking lots throughout the country are hoping patriotism, tradition and a strong need to party will translate to a billion dollars and more burning a collective hole in America's pockets. (AP Photo/Elaine Thompson)" border="0" /></a>LiveScience.com - Fireworks for the 4th of July are all about light, color and sound. But inside, there are some bizarre ingredients, from aluminum to Vaseline and even the stuff of rat poison.</p><br clear="all"/> <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/livescience/thestrangeingredientsinfireworks"><img src="http://d.yimg.com/a/p/ap/20090702/capt.b85669eccfdf469b8680df6a2cb5d10c.frugal_fourth_waet203.jpg?x=130&y=76&q=85&sig=5YGnWDzm7T4hHgZTchehug--" align="left" height="76" width="130" alt="photo" title="This June 30, 2009 photo shows Justin Yelle carrying fireworks for a customer at 'Boom City,' a collection of fireworks stands on the Tulalips Tribes' reservation near Marysville, Wash. The operators of thousands of fireworks stands on Indian reservations and in parking lots throughout the country are hoping patriotism, tradition and a strong need to party will translate to a billion dollars and more burning a collective hole in America's pockets. (AP Photo/Elaine Thompson)" border="0"/></a></p><br clear="all"/> (LiveScience.com) http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/ap/as_sci_myanmar_primate_fossil ap/20090702/as_sci_myanmar_primate_fossil AP science Thu, 02 Jul 2009 15:00:34 GMT <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/ap/as_sci_myanmar_primate_fossil"><img src="http://d.yimg.com/a/p/ap/20090702/capt.7fbe361f96c64488be6fb18bb5b9de7b.myanmar_primate_fossil_paks401.jpg?x=92&y=130&q=85&sig=0uLkmvm0wEJ.A5Uj89w3_w--" align="left" height="130" width="92" alt="This image, provided by the Carnegie Museum of Natural History, is an artist's conception what they call a life reconstruction of Ganlea megacanina by Mark A. Klingler. Fossils recently discovered in Myanmar could prove that the common ancestors of humans, monkeys and apes evolved from primates in Asia, rather than Africa, researchers contend in a study released Wednesday,July 1. 2009. Fossils - which the scientists dubbed Ganlea megacanina - came from 10 to 15 individuals of a new species that belonged to an extinct family of Asian anthropoid primates known as Amphipithecidae. (AP Photo/Carnegie Museum of Natural History/Mark A. Klingler)" border="0" /></a>AP - Fossils recently discovered in Myanmar could prove that the common ancestors of humans, monkeys and apes evolved from primates in Asia, rather than Africa, researchers contend in a study released Wednesday.</p><br clear="all"/> <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/ap/as_sci_myanmar_primate_fossil"><img src="http://d.yimg.com/a/p/ap/20090702/capt.7fbe361f96c64488be6fb18bb5b9de7b.myanmar_primate_fossil_paks401.jpg?x=92&y=130&q=85&sig=0uLkmvm0wEJ.A5Uj89w3_w--" align="left" height="130" width="92" alt="photo" title="This image, provided by the Carnegie Museum of Natural History, is an artist's conception what they call a life reconstruction of Ganlea megacanina by Mark A. Klingler. Fossils recently discovered in Myanmar could prove that the common ancestors of humans, monkeys and apes evolved from primates in Asia, rather than Africa, researchers contend in a study released Wednesday,July 1. 2009. Fossils - which the scientists dubbed Ganlea megacanina - came from 10 to 15 individuals of a new species that belonged to an extinct family of Asian anthropoid primates known as Amphipithecidae. (AP Photo/Carnegie Museum of Natural History/Mark A. Klingler)" border="0"/></a></p><br clear="all"/> (AP) http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/space/nasaexpectspectacularviewsofspacestationthisweekend space/20090630/nasaexpectspectacularviewsofspacestationthisweekend SPACE.com science Tue, 30 Jun 2009 22:45:23 GMT SPACE.com - Over the 4th of July weekend, Americans will have "spectacular views" of the International Space Station as it makes several passes over the country, NASA said Tuesday. http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/nm/us_space_solar nm/20090701/us_space_solar Reuters science Wed, 01 Jul 2009 01:12:40 GMT Reuters - The interplanetary space probe Ulysses officially ceased operations on Tuesday after an 18-year voyage of roughly 5.5 billion miles (8.85 billion km) and nearly three complete orbits around the sun, NASA said. http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/nm/us_wildlife_extinctions nm/20090702/us_wildlife_extinctions Reuters science Thu, 02 Jul 2009 00:05:27 GMT <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/nm/us_wildlife_extinctions"><img src="http://d.yimg.com/a/p/rids/20090702/i/r1461381415.jpg?x=130&y=86&q=85&sig=d6ogoihgeQJ6zrr0qG3.7w--" align="left" height="86" width="130" alt="An aerial view of a patch of deforested jungle close to Bacabal, in the northeastern state of Maranhao, in this May 13, 2009 file photo. REUTERS/Paulo Whitaker/Files" border="0" /></a>Reuters - More than 800 animal and plant species have gone extinct in the past five centuries with nearly 17,000 now threatened with extinction, the International Union for Conservation of Nature reported on Thursday.</p><br clear="all"/> <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/nm/us_wildlife_extinctions"><img src="http://d.yimg.com/a/p/rids/20090702/i/r1461381415.jpg?x=130&y=86&q=85&sig=d6ogoihgeQJ6zrr0qG3.7w--" align="left" height="86" width="130" alt="photo" title="An aerial view of a patch of deforested jungle close to Bacabal, in the northeastern state of Maranhao, in this May 13, 2009 file photo. REUTERS/Paulo Whitaker/Files" border="0"/></a></p><br clear="all"/> (Reuters) http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/livescience/evencockroachesgetfatonbadfood livescience/20090703/evencockroachesgetfatonbadfood LiveScience.com science Fri, 03 Jul 2009 15:25:56 GMT LiveScience.com - Cockroaches may be tiny enough to slip through the smallest of cracks, but just like humans, these eternal pests can get fat on an unhealthy diet. http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/livescience/menagreewhoshotwomendont livescience/20090630/menagreewhoshotwomendont LiveScience.com science Tue, 30 Jun 2009 17:01:38 GMT LiveScience.com - Thin and seductive, that's what men find attractive in women. But the ladies are less in agreement over what makes for a hot guy, new research finds. http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/space/usarmyrevivesoldairshipconceptformodernmission space/20090702/usarmyrevivesoldairshipconceptformodernmission SPACE.com science Thu, 02 Jul 2009 03:30:24 GMT SPACE.com - An airship that the U.S. Army says is the largest lighter-than-air vehicle ever used in U.S. military operations will make its debut flight in August as part of an effort to field a system to detect, track and shoot down cruise missiles. http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/nm/us_salamanders_limbs nm/20090701/us_salamanders_limbs Reuters science Wed, 01 Jul 2009 23:39:52 GMT <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/nm/us_salamanders_limbs"><img src="http://d.yimg.com/a/p/rids/20090701/i/r2262104860.jpg?x=130&y=83&q=85&sig=dHtP6rTU0LTuUKUVL3hX1g--" align="left" height="83" width="130" alt="A salamander swims in an aquarium at Mexico City's National Autonomous University of Mexico (UNAM ) laboratory June 10, 2009. REUTERS/Felipe Leon" border="0" /></a>Reuters - Mexican salamanders who can re-grow amputated legs are not pulling off quite as big a biological trick as scientists had first thought, which may help doctors trying to regenerate human limbs.</p><br clear="all"/> <p><a href="http://us.rd.yahoo.com/dailynews/rss/highestratedsc/*http://news.yahoo.com/s/nm/us_salamanders_limbs"><img src="http://d.yimg.com/a/p/rids/20090701/i/r2262104860.jpg?x=130&y=83&q=85&sig=dHtP6rTU0LTuUKUVL3hX1g--" align="left" height="83" width="130" alt="photo" title="A salamander swims in an aquarium at Mexico City's National Autonomous University of Mexico (UNAM ) laboratory June 10, 2009. REUTERS/Felipe Leon" border="0"/></a></p><br clear="all"/> (Reuters)