| 1. | Ancient Amphibian Skull Discovered at Airport | 16 Mar 10, 03:00 | 140 | 4 |
| 2. | 'Doomsday' Seed Vault Stores 500,000 Crops | 11 Mar 10, 07:01 | 377 | 62 |
| 3. | Biblical City's True Location Discovered, Researchers Claim | 9 Mar 10, 23:10 | 354 | 78 |
| 4. | Apple's iPhone Addictive? | 8 Mar 10, 20:00 | 411 | 73 |
| 5. | How Common is Low-Back Pain? | 8 Mar 10, 17:40 | 294 | 85 |
| 6. | Amazing Images of Earth From Space | 5 Mar 10, 23:40 | 112 | 9 |
| 7. | Fake Weed, Real Drug: K2 Causing Hallucinations in Teens | 4 Mar 10, 17:40 | 532 | 142 |
| 8. | Earth's Earthquake Hotspots | 3 Mar 10, 23:30 | 365 | 33 |
| 9. | The Real Reason We Dress Pets Like People | 3 Mar 10, 22:40 | 334 | 35 |
| 10. | Anti-Drinking Ads Induce More Drinking in Some People | 3 Mar 10, 19:00 | 308 | 63 |
| 11. | Dinosaurs Had Wrists Like Birds | 3 Mar 10, 17:30 | 211 | 41 |
| 12. | Origin of Small Dogs Pinned Down | 2 Mar 10, 08:10 | 176 | 11 |
| 13. | Ford cars to feature voice-controlled Internet | 1 Mar 10, 15:30 | 300 | 68 |
| 14. | Top 10 Spooky Sleep Disorders | 1 Mar 10, 03:50 | 498 | 130 |
| 15. | How Tsunamis Work | 27 Feb 10, 20:40 | 379 | 26 |
| 16. | Promiscuous Female Flies Save Their Population | 26 Feb 10, 22:10 | 268 | 33 |
| 17. | Tip-of-the-Tongue Moments Explained | 26 Feb 10, 21:21 | 276 | 16 |
| 18. | Gulp! Long-Necked Dinosaurs Didn't Bother Chewing | 25 Feb 10, 23:41 | 259 | 10 |
| 19. | Brain's 'Fairness' Spot Found | 25 Feb 10, 19:40 | 310 | 18 |
| 20. | Does Coffee Kill the Benefits of Vitamins? | 22 Feb 10, 18:00 | 250 | 47 |
| 21. | 'Biggest Loser' Has Big Problems, Health Experts Say | 22 Feb 10, 10:19 | 357 | 80 |
| 22. | Blue Marble: Looking Back at Earth from Space (PICS) | 20 Feb 10, 17:30 | 453 | 20 |
| 23. | Cheap Solar Cell Could be Incorporated Into Clothing | 18 Feb 10, 00:20 | 247 | 10 |
| 24. | Colors Describe Happiness vs. Depression, Study Says | 10 Feb 10, 12:10 | 285 | 51 |
| 25. | Why Advertised Broadband Speeds Lag Behind Reality | 9 Feb 10, 22:30 | 327 | 59 |
| 26. | The Most Awe-Inspiring Natural Wonders in America | 8 Feb 10, 22:20 | 415 | 36 |
| 27. | Tiny Galaxies Reveal How First Stars Formed | 6 Feb 10, 08:50 | 279 | 8 |
| 28. | 7 Terrific Toad Survival Tactics | 5 Feb 10, 17:30 | 308 | 33 |
| 29. | Future Soldiers: Brain Boosters and Exoskeletons | 3 Feb 10, 03:40 | 297 | 35 |
| 30. | How Life Without Sex Works | 31 Jan 10, 23:20 | 409 | 83 |
| 31. | Metal Foam (video) | 30 Jan 10, 20:00 | 1266 | 147 |
| 32. | Why Ostriches Can't Fly | 29 Jan 10, 07:10 | 303 | 32 |
| 33. | New Theory of Primate Origins Sparks Controversy | 28 Jan 10, 06:30 | 304 | 30 |
| 34. | Sobs and Growls Come Across In Any Language | 26 Jan 10, 05:20 | 237 | 16 |
| 35. | Cars Without Drivers? [W/VID] | 24 Jan 10, 23:20 | 457 | 117 |
| 36. | Charles Darwin: Family Man, Scientist and Skeptic | 23 Jan 10, 01:50 | 525 | 117 |
| 37. | Embryos Like to Be Rocked Like Babies | 21 Jan 10, 06:40 | 271 | 18 |
| 38. | Tough Snail Shell Could Inspire Better Body Armor | 19 Jan 10, 03:40 | 267 | 18 |
| 39. | Bible Possibly Written Centuries Earlier, Texts Suggests | 15 Jan 10, 18:10 | 1062 | 578 |
| 40. | Mozart Effect Helps Premature Babies Get Stronger | 13 Jan 10, 21:00 | 261 | 56 |
| 41. | Fat Butts May Be Healthy | 13 Jan 10, 16:20 | 389 | 110 |
| 42. | Record–Breaking Snow and Cold Reminiscent of the Late '70s | 7 Jan 10, 22:30 | 256 | 163 |
| 43. | Mystery of World's Biggest Beasts Possibly Solved | 7 Jan 10, 13:10 | 267 | 31 |
| 44. | Wrong Spoon Size Can Cause Medicine Mistakes | 6 Jan 10, 22:40 | 326 | 60 |
| 45. | Popular Treatment for Low-Back Pain Doesn't Work | 31 Dec 09, 03:00 | 258 | 50 |
| 46. | New Device Prints Human Tissue | 31 Dec 09, 00:00 | 264 | 28 |
| 47. | Why Men Cheat: A Year of Philandering | 30 Dec 09, 02:40 | 321 | 119 |
| 48. | High-Tech Glitter to Create Flexible Solar Panels | 29 Dec 09, 05:30 | 204 | 17 |
| 49. | The Real Reason Cell Phone Use Is Banned on Airlines | 24 Dec 09, 00:31 | 469 | 82 |
| 50. | Chimps Master First Step in Controlling Fire | 23 Dec 09, 01:30 | 310 | 32 |
| 51. | 8 Tips for a Green Christmas | 20 Dec 09, 19:30 | 150 | 30 |
| 52. | The Truth About Hangovers Revealed in Drunken Study | 19 Dec 09, 22:50 | 410 | 70 |
| 53. | Deepest Undersea Erupting Volcano [VID] | 18 Dec 09, 21:30 | 398 | 18 |
| 54. | Can Robots Make Ethical Decisions? | 17 Dec 09, 08:01 | 230 | 77 |
| 55. | New Device Makes Guns More Accurate | 14 Dec 09, 09:51 | 443 | 104 |
| 56. | Antidepressants Can Change Personalities | 8 Dec 09, 04:20 | 425 | 149 |
| 57. | Earth Checkup: 10 Signs of the Planet's Health | 7 Dec 09, 23:50 | 351 | 18 |
| 58. | Four New Species of King Crabs Discovere | 4 Dec 09, 18:40 | 597 | 39 |
| 59. | Google Phone Could Mean Free Mobile Phone Service | 3 Dec 09, 18:40 | 1062 | 185 |
| 60. | Loneliness Spreads Like a Virus | 2 Dec 09, 14:40 | 534 | 40 |
| 61. | Harnessing Wave Energy [Video] | 30 Nov 09, 18:20 | 381 | 36 |
| 62. | Americans Toss Out 40 Percent of All Food | 27 Nov 09, 14:37 | 322 | 67 |
| 63. | Stellar Fossils from Milky Way's Past Revealed | 26 Nov 09, 23:31 | 215 | 6 |
| 64. | WiFi in the Sky: In-Flight Internet Takes Off | 25 Nov 09, 05:31 | 300 | 27 |
| 65. | Why Kids Ask Why | 24 Nov 09, 10:30 | 395 | 75 |
| 66. | Shocking Treatment Helps Erectile Dysfunction | 23 Nov 09, 18:31 | 245 | 78 |
| 67. | The Digital Divide: Why Grandma Should Get Online | 21 Nov 09, 00:21 | 182 | 30 |
| 68. | Zap! Light Used to Paralyze Tiny Creatures | 20 Nov 09, 17:11 | 396 | 32 |
| 69. | Extinction of Giant Mammals Changed Landscape Dramatically | 20 Nov 09, 01:50 | 280 | 23 |
| 70. | The Obese Don't Always Know It | 19 Nov 09, 09:10 | 277 | 63 |
| 71. | Coed Dorms Fuel Sex, Pornography, and Drinking | 18 Nov 09, 10:34 | 517 | 127 |
| 72. | Study Shows Texting Causes Pain in the Neck | 17 Nov 09, 00:30 | 197 | 23 |
| 73. | Car-Sized Creature Whacked with Tail's Sweet Spot | 16 Nov 09, 07:40 | 212 | 17 |
| 74. | Clearing Out the Brain's Inbox | 16 Nov 09, 03:00 | 387 | 27 |
| 75. | Scientists Successfully Turn Worm into Hermaphrodite (w/vid) | 16 Nov 09, 00:20 | 221 | 58 |
| 76. | Video Game provides Virtual Girlfriend, Requires Kissing | 15 Nov 09, 02:10 | 335 | 61 |
| 77. | Humans Still Evolving as Our Brains Shrink | 13 Nov 09, 23:51 | 378 | 74 |
| 78. | Women More Loyal When Cancer Strikes | 11 Nov 09, 03:30 | 282 | 49 |
| 79. | Miniature Robots to Swarm the Oceans | 10 Nov 09, 20:10 | 296 | 28 |
| 80. | Interactive TV to Put You in the Show | 9 Nov 09, 04:30 | 266 | 36 |
| 81. | Horror Movies: Why People Love Them | 7 Nov 09, 05:40 | 224 | 22 |
| 82. | Top 10 Smartest Mammals | 6 Nov 09, 19:30 | 341 | 87 |
| 83. | Unhealthy Food Ads Pervasive on Kids' Shows | 5 Nov 09, 16:21 | 264 | 46 |
| 84. | What Bing Does Best | 4 Nov 09, 14:00 | 431 | 62 |
| 85. | T. rex's Oldest Relative Discovered | 4 Nov 09, 07:00 | 276 | 11 |
| 86. | Wireless Devices Overwhelm Nature's Signals | 3 Nov 09, 03:20 | 246 | 19 |
| 87. | Fishing Boat Sunk by Giant Jellyfish | 2 Nov 09, 20:12 | 353 | 76 |
| 88. | Oldest Known Spider Webs Discovered | 2 Nov 09, 00:10 | 381 | 34 |
| 89. | The Future of Video Game Input: Muscle Sensors | 31 Oct 09, 09:00 | 279 | 30 |
| 90. | Mars Caves Might Protect Microbes (or Astronauts) | 27 Oct 09, 19:20 | 363 | 31 |
| 91. | Fraud, Errors and Misconceptions in Medical Research | 27 Oct 09, 01:50 | 238 | 11 |
| 92. | Sea Creature's Amazing Eyes Could Inspire New DVD Players | 26 Oct 09, 04:00 | 422 | 60 |
| 93. | 10 Really scary Phobias | 25 Oct 09, 06:31 | 377 | 68 |
| 94. | Cleanliness May Foster Morality | 25 Oct 09, 05:50 | 296 | 45 |
| 95. | Why Some Men Can't Control Arousal | 23 Oct 09, 17:40 | 447 | 72 |
| 96. | The Ultimate Sacrifice: What Some Bugs Will Do | 22 Oct 09, 21:30 | 237 | 11 |
| 97. | How to Stay Healthy in Retirement: Keep Working | 20 Oct 09, 11:49 | 284 | 26 |
| 98. | 25 Amazing Ancient Beasts | 18 Oct 09, 11:27 | 399 | 47 |
| 99. | High-Speed 'Other' Internet Goes Global | 17 Oct 09, 11:31 | 375 | 23 |
| 100. | Don't tell PETA: Bunnies Burned for Heat | 16 Oct 09, 11:40 | 326 | 103 |
| 101. | Plants Know Their Siblings | 16 Oct 09, 11:34 | 362 | 35 |
| 102. | Clever New Fan Has No Blades | 14 Oct 09, 10:18 | 2554 | 420 |
| 103. | Big Cats Picky About Habitat | 12 Oct 09, 11:58 | 217 | 5 |
| 104. | Even Modest Exercise Boosts Self-Image | 9 Oct 09, 11:43 | 306 | 54 |
| 105. | Glow-in-the-Dark Mushrooms Discovered | 5 Oct 09, 20:31 | 399 | 70 |
| 106. | Exploring the Mysteries of the Ocean Floor | 2 Oct 09, 20:13 | 218 | 10 |
| 107. | On Alien World, It Rains Rocks... | 2 Oct 09, 03:20 | 337 | 36 |
| 108. | Earth Shakes Twice: Is the Planet On a Roll? | 1 Oct 09, 16:12 | 388 | 99 |
| 109. | Clock Turned Back on Aging Muscles, Researchers Claim | 30 Sep 09, 21:10 | 436 | 26 |
| 110. | 850 Mostly Blind, Pale Creatures Discovered Underground | 28 Sep 09, 12:50 | 337 | 34 |
| 111. | Dead Salmon 'Responds' to Pictures of People | 28 Sep 09, 06:00 | 317 | 76 |
| 112. | Moon Myths: The Truth About Lunar Effects on You | 26 Sep 09, 02:10 | 245 | 22 |
| 113. | Cat Scan of Katrina: Inside a Super Storm | 25 Sep 09, 00:01 | 232 | 31 |
| 114. | Evolution Can't Go Backward | 24 Sep 09, 17:31 | 372 | 145 |
| 115. | Why It's So Hard to Make Nuclear Weapons | 23 Sep 09, 15:41 | 492 | 133 |
| 116. | Booze: Possible Treatment for Brain Injury | 22 Sep 09, 16:20 | 326 | 44 |
| 117. | Why Odd Egg-Laying Mammals Still Exist | 22 Sep 09, 15:20 | 293 | 27 |
| 118. | New Worm Species Discovered on Dead Whales | 22 Sep 09, 03:20 | 251 | 26 |
| 119. | Effort to Shush Loud TV Commercials | 19 Sep 09, 01:10 | 977 | 158 |
| 120. | Chronic Pain Makes 50-year-olds Feel 80 | 18 Sep 09, 19:42 | 244 | 67 |
| 121. | The Science of Hunger: What 1 Billion People Feel | 18 Sep 09, 18:51 | 287 | 137 |
| 122. | Hurricanes Spawning More U.S. Tornadoes | 16 Sep 09, 17:40 | 201 | 21 |
| 123. | 10 Ways to Keep Your Mind Sharp | 16 Sep 09, 16:21 | 424 | 32 |
| 124. | NASA Rocket to Create Clouds Tuesday | 14 Sep 09, 18:50 | 373 | 53 |
| 125. | 7 Thoughts That Are Bad For You | 12 Sep 09, 11:50 | 288 | 56 |
| 126. | Ancient Chinese Remedy May Work for Flu | 11 Sep 09, 19:01 | 387 | 88 |
| 127. | Scientists have now levitated mice using magnetic fields | 10 Sep 09, 19:10 | 769 | 123 |
| 128. | Hard Labor: How 10 Animals Struggle to Survive | 4 Sep 09, 21:51 | 193 | 15 |
| 129. | Why Did People Become White? | 2 Sep 09, 12:59 | 1235 | 560 |
| 130. | Tightwads and Spendthrifts Attract, Marry, Fight | 1 Sep 09, 18:50 | 255 | 32 |
| 131. | Bacteria Clean Sewage and Create Electricity | 31 Aug 09, 17:12 | 351 | 33 |
| 132. | Dangers in the Deep: 10 Scariest Sea Creatures | 29 Aug 09, 02:30 | 388 | 45 |
| 133. | New Theory for Why We Cry | 28 Aug 09, 22:10 | 432 | 86 |
| 134. | Air Conditioners May Be Making The Earth Hotter | 28 Aug 09, 12:11 | 139 | 39 |
| 135. | Newfound Planet Might Be Near Death | 27 Aug 09, 15:42 | 340 | 52 |
| 136. | Death Calculator Predicts Your Odds of Kicking the Bucket | 27 Aug 09, 13:40 | 317 | 55 |
| 137. | How to Swat a Mosquito | 27 Aug 09, 05:50 | 349 | 70 |
| 138. | Wind Turbine Blades Change Shape | 24 Aug 09, 17:20 | 275 | 11 |
| 139. | Gigantic Lightning Jets Shoot from Clouds to Space | 24 Aug 09, 02:10 | 427 | 33 |
| 140. | Cloaking Technology May Protect From Natural Disasters | 19 Aug 09, 00:20 | 236 | 20 |
| 141. | Hacker Attacks: 6 Things You Must Know | 18 Aug 09, 15:22 | 504 | 61 |
| 142. | Caffeine Causes and Cures Headaches | 16 Aug 09, 22:01 | 424 | 56 |
| 143. | Dutch Prefer Toilets to Friends and Sex? | 13 Aug 09, 20:31 | 320 | 76 |
| 144. | Orangutans Make Musical Instrument | 12 Aug 09, 19:10 | 417 | 51 |
| 145. | Why 'Willy' Could Never Be Free | 9 Aug 09, 12:50 | 451 | 54 |
| 146. | Mystery Surrounds Prevalence of Twins in Indian Village | 7 Aug 09, 15:31 | 279 | 41 |
| 147. | How to Get Cancer: Move to the United States | 6 Aug 09, 19:20 | 379 | 85 |
| 148. | Brain Exercises May Delay Dementia | 4 Aug 09, 02:21 | 293 | 26 |
| 149. | Top 10 American Innovations [PICS] | 4 Aug 09, 00:01 | 650 | 236 |
| 150. | Can Life on Earth Escape the Swelling Sun? | 3 Aug 09, 20:41 | 363 | 87 |
| 151. | New Study says Video Gamers are hooked for life | 31 Jul 09, 20:30 | 566 | 193 |
| 152. | Nap Time! One-third of Americans Do It | 31 Jul 09, 04:50 | 399 | 72 |
| 153. | Bright Spot on Venus Stumps Scientists | 31 Jul 09, 04:30 | 396 | 43 |
| 154. | 50 Percent of Doctors Use Wikipedia | 29 Jul 09, 20:50 | 720 | 94 |
| 155. | Scientists claim new state of matter created | 29 Jul 09, 10:30 | 749 | 81 |
| 156. | Wild Volcanoes [15 Images] | 26 Jul 09, 19:51 | 256 | 16 |
| 157. | WD-40: Strange Facts and Myths | 26 Jul 09, 00:20 | 407 | 83 |
| 158. | Taller Athletes Are Faster | 25 Jul 09, 11:00 | 100 | 21 |
| 159. | Far-Out Photo: Sunrise in Space | 23 Jul 09, 21:50 | 460 | 16 |
| 160. | ATMs Fight Back With Pepper Spray | 23 Jul 09, 00:10 | 369 | 31 |
| 161. | Human Stabbed a Neanderthal, Evidence Suggests | 22 Jul 09, 12:04 | 575 | 151 |
| 162. | Comet Killed Ice Age Beasts | 21 Jul 09, 21:13 | 379 | 51 |
| 163. | Warming World May Mean Smaller Animals | 21 Jul 09, 04:00 | 109 | 39 |
| 164. | Getting Fat? Blame the Recession | 20 Jul 09, 21:01 | 285 | 52 |
| 165. | Tough Microbe Has The Right Stuff for Mars | 19 Jul 09, 02:20 | 250 | 36 |
| 166. | Will Robots Replace Teachers in the Near Future? | 18 Jul 09, 00:30 | 181 | 34 |
| 167. | Cannonballs Really Could Sink Ships Study Finds | 16 Jul 09, 19:10 | 252 | 80 |
| 168. | Urine Tapped as New Fuel Source | 16 Jul 09, 11:10 | 335 | 45 |
| 169. | Buried City in Oasis Lends View of Ancient Egypt | 15 Jul 09, 21:30 | 285 | 9 |
| 170. | New Heavy Element Likely to Be Named for Copernicus | 15 Jul 09, 07:10 | 309 | 47 |
| 171. | Light's Repulsive Force Discovered | 14 Jul 09, 15:42 | 657 | 64 |
| 172. | Cats do control humans, study finds | 14 Jul 09, 13:30 | 1095 | 178 |
| 173. | Robotic Spy Bat: A real life Batman-style gadget | 13 Jul 09, 23:11 | 230 | 16 |
| 174. | Why Are Human Brains So Big? | 13 Jul 09, 19:41 | 359 | 106 |
| 175. | Fiber Fabric Could Create Whole-Body Cameras | 12 Jul 09, 21:10 | 318 | 27 |
| 176. | Nanoscientists Trying to Turn Molecules Into Motors | 10 Jul 09, 22:30 | 329 | 25 |
| 177. | Top 10 Poisonous Plants | 10 Jul 09, 02:50 | 255 | 54 |
| 178. | Even Cockroaches Get Fat Eating Junk Food | 4 Jul 09, 18:50 | 408 | 65 |
| 179. | The Strange Ingredients in Fireworks | 3 Jul 09, 22:13 | 289 | 44 |
| 180. | U.S. Society Ignoring Serious Boy Problems | 2 Jul 09, 02:10 | 472 | 195 |
| 181. | New Speed Record Set For Electronic Airplanes | 1 Jul 09, 16:40 | 321 | 51 |
| 182. | Getting Old Is Better Than Expected | 30 Jun 09, 08:20 | 322 | 33 |
| 183. | Are You More Like Chimps or Orangutans? | 30 Jun 09, 05:20 | 202 | 63 |
| 184. | Half of Americans Use Vibrators, Study Claims | 29 Jun 09, 18:13 | 820 | 213 |
| 185. | When Hammering, Women Nail It | 29 Jun 09, 12:27 | 393 | 100 |
| 186. | Potential New Drugs Put at 970 Million | 28 Jun 09, 05:00 | 382 | 85 |
| 187. | The Most Dangerous Sport: Cheerleading | 26 Jun 09, 21:02 | 151 | 74 |
| 188. | Three foot long Piranha Fossil Found | 26 Jun 09, 20:12 | 364 | 38 |
| 189. | Why Politicians Cheat On Their Wives | 25 Jun 09, 17:50 | 406 | 105 |
| 190. | Can First-Time Home Buyers Save the Economy | 23 Jun 09, 08:10 | 233 | 64 |
| 191. | Brain Sees Tools as Extensions of Body | 22 Jun 09, 21:30 | 520 | 68 |
| 192. | Miles-High Kites Could Generate Electricity | 22 Jun 09, 16:33 | 370 | 47 |
| 193. | The Weirdest Object in the Solar System? | 22 Jun 09, 14:31 | 846 | 86 |
| 194. | Giant Dinosaurs Get Downsized | 22 Jun 09, 02:21 | 359 | 43 |
| 195. | Dads Are Key to Making Us Human | 20 Jun 09, 01:30 | 736 | 223 |
| 196. | Dad: More than Just a Guy with Sperm | 19 Jun 09, 20:32 | 279 | 77 |
| 197. | 12 Twisted Tornado Facts | 19 Jun 09, 06:31 | 362 | 27 |
| 198. | How Alcohol Changes the Brain ... Quickly | 17 Jun 09, 08:07 | 642 | 73 |
| 199. | Dream Deferred Americans May Never Retire | 16 Jun 09, 13:10 | 368 | 153 |
| 200. | The Gross Science of a Cough and a Sneeze | 15 Jun 09, 17:00 | 271 | 25 |
| 201. | Top 10 Amazing Moon Facts | 15 Jun 09, 08:01 | 567 | 88 |
| 202. | U.S. Winds Are Dying Down, Study Suggests | 14 Jun 09, 04:50 | 409 | 158 |
| 203. | Curse Word on Roof Spotted from Space | 13 Jun 09, 22:01 | 553 | 49 |
| 204. | World's Smallest Microwave Is USB Powered | 8 Jun 09, 22:40 | 709 | 101 |
| 205. | Does First Goal in Hockey Raise Odds of Winning? | 7 Jun 09, 02:10 | 326 | 49 |
| 206. | Bionics Gives Blind Woman Partial Vision (vid) | 6 Jun 09, 20:11 | 338 | 51 |
| 207. | Why White Men Get Paid More | 5 Jun 09, 00:10 | 536 | 405 |
| 208. | Investment in Green Energy Quadruples in 4 Years | 3 Jun 09, 21:30 | 362 | 47 |
| 209. | Ancient Human Ancestor 'Ida' Discovered | 2 Jun 09, 19:30 | 171 | 38 |
| 210. | Girls Get Math: It's Culture That's Skewed | 2 Jun 09, 11:33 | 421 | 178 |
| 211. | TV Causes Learning Lag in Infants | 2 Jun 09, 06:11 | 381 | 54 |
| 212. | Extremophile Hunter Searches for 'Impossible' Life | 1 Jun 09, 18:42 | 251 | 16 |
| 213. | Test Tube Babies On the Rise Worldwide | 29 May 09, 19:30 | 207 | 41 |
| 214. | Socialites and Curmudgeons - Two Brain Types | 27 May 09, 03:00 | 297 | 36 |
| 215. | 10 Events That Changed History | 26 May 09, 09:34 | 553 | 88 |
| 216. | Is it Safe to Exercise in Your 70s? | 25 May 09, 17:50 | 312 | 67 |
| 217. | In Recession, Women Splurge as if Addicted | 22 May 09, 12:37 | 404 | 51 |
| 218. | Birds Know Who We Are | 21 May 09, 11:50 | 600 | 102 |
| 219. | Bacteria Help Form Clouds? | 20 May 09, 21:20 | 331 | 20 |
| 220. | Top 10 Greatest Explosions Ever | 18 May 09, 01:20 | 683 | 76 |
| 221. | The Search for Drinking Water in Nicaragua | 16 May 09, 18:50 | 293 | 16 |
| 222. | 1 in 5 Americans Admits Peeing in Pool | 15 May 09, 02:02 | 664 | 233 |
| 223. | Surprise! Daydreaming Really Works the Brain | 14 May 09, 10:32 | 517 | 37 |
| 224. | World's Greatest Illusions Chosen | 14 May 09, 03:51 | 631 | 73 |
| 225. | Freaks Survive Because They Are Strange | 13 May 09, 05:50 | 449 | 56 |
| 226. | Mammals 'Got Milk' for Past 160 Million Years | 12 May 09, 23:50 | 313 | 38 |
| 227. | Your Blood Cells Are Crawling Inside You | 11 May 09, 23:02 | 475 | 61 |
| 228. | Do Older People Need More Sleep? | 11 May 09, 18:10 | 326 | 52 |
| 229. | 5 Scientific Reasons Mom Deserves Mother's Day | 9 May 09, 16:20 | 418 | 55 |
| 230. | Top 10 Greatest Mysteries in Science | 8 May 09, 16:41 | 1380 | 318 |
| 231. | How Social Insects Recognize Dead Nestmates | 6 May 09, 20:30 | 294 | 36 |
| 232. | Texting While Driving Kills Virtual Pedestrians | 5 May 09, 10:40 | 474 | 115 |
| 233. | Dolphins Keep an Eye Out While Sleeping? | 2 May 09, 20:00 | 441 | 35 |
| 234. | 5 Wild Diseases We Got From Animals | 30 Apr 09, 16:11 | 472 | 56 |
| 235. | The 10 Most Outrageous Military Experiments | 29 Apr 09, 22:30 | 904 | 71 |
| 236. | Swine Flu Is Evolution in Action | 29 Apr 09, 16:10 | 1528 | 838 |
| 237. | Swine Flu Vaccine Could Take 6 Months | 28 Apr 09, 16:10 | 474 | 190 |
| 238. | Dinosaurs Lived in the Arctic | 26 Apr 09, 18:01 | 367 | 61 |
| 239. | 10 Ways to Keep Your Mind Sharp | 24 Apr 09, 23:20 | 575 | 39 |
| 240. | Night Owls Stay Alert Longer than Early Birds | 24 Apr 09, 02:41 | 897 | 130 |
| 241. | Is Modern Society Ruining Childhood? | 23 Apr 09, 06:00 | 569 | 197 |
| 242. | Hurricanes Shoot Water Ice into the Stratosphere | 21 Apr 09, 02:30 | 406 | 107 |
| 243. | Top 10 Alternative Energy Bets | 20 Apr 09, 14:50 | 343 | 80 |
| 244. | Three Subgroups of Neanderthals Identified | 16 Apr 09, 22:50 | 307 | 38 |
| 245. | All Octopuses Are Venomous. Ouch! | 16 Apr 09, 16:40 | 581 | 83 |
| 246. | Mystery of Tooth Strength Cracked | 14 Apr 09, 18:30 | 473 | 43 |
| 247. | Our Solar System's Lost Planet: The Search is On | 14 Apr 09, 05:20 | 540 | 55 |
| 248. | Early Humans Were Poor Climbers | 14 Apr 09, 04:50 | 364 | 58 |
| 249. | Study: Biofuel Threatens Water Supplies | 13 Apr 09, 04:21 | 383 | 61 |
| 250. | Getting a Job Promotion Can Be Bad For You | 10 Apr 09, 08:14 | 268 | 54 |
| 251. | Top 10 Weird Ways We Deal with the Dead | 9 Apr 09, 23:30 | 370 | 30 |
| 252. | Study: Tiger Woods' Brain Likely Has More Gray Matter | 9 Apr 09, 20:50 | 221 | 36 |
| 253. | Friendly 'Death Star' Laser to Recreate Sun's Power | 9 Apr 09, 13:45 | 479 | 59 |
| 254. | Dramatic Image Shows Volcano's Lightning | 9 Apr 09, 10:10 | 429 | 13 |
| 255. | Adults Retain 'Good' Baby Fat | 9 Apr 09, 04:00 | 296 | 18 |
| 256. | 10 Surprising Sex Statistics | 9 Apr 09, 00:30 | 1193 | 302 |
| 257. | Otherworldly Scenes Found on Seafloor | 8 Apr 09, 07:10 | 295 | 14 |
| 258. | Tiny Newfound Frog Fits on a Fingertip | 7 Apr 09, 20:50 | 362 | 23 |
| 259. | The 10 Worst U.S Natural Disasters | 7 Apr 09, 05:00 | 358 | 41 |
| 260. | How Baseball Players Catch Fly Balls | 5 Apr 09, 04:20 | 514 | 59 |
| 261. | Surprise! Adult Hearts Grow New Cells | 3 Apr 09, 18:50 | 483 | 34 |
| 262. | Mysterious Dark Matter Possibly Detected | 2 Apr 09, 02:20 | 641 | 43 |
| 263. | Coffee Lessens the Pain of Exercise | 1 Apr 09, 08:00 | 614 | 43 |
| 264. | Surviving Salmonella: What You Can Do? | 1 Apr 09, 03:30 | 287 | 54 |
| 265. | Sex with Robots - How Humanity Is Screwing Itself | 31 Mar 09, 20:40 | 593 | 113 |
| 266. | Mystery Flash and Big Boom Rattles Virginia | 30 Mar 09, 22:20 | 636 | 187 |
| 267. | Perfect Running Pace Revealed | 30 Mar 09, 03:50 | 759 | 107 |
| 268. | Fish Oil Could Curb Cow Flatulence | 30 Mar 09, 03:10 | 402 | 98 |
| 269. | Robot Madness: Will Cyborgs Compromise Privacy? (With Video) | 28 Mar 09, 20:40 | 196 | 12 |
| 270. | Robot Madness: Walk Like Humans Do! | 26 Mar 09, 03:40 | 329 | 47 |
| 271. | Spider Bite Cures Paralyzed Man: Miracle or Bad Reporting? | 25 Mar 09, 02:00 | 485 | 39 |
| 272. | Star Explodes, and So Might Theory | 23 Mar 09, 17:40 | 722 | 184 |
| 273. | Scientists Create March Madness Formula | 19 Mar 09, 06:50 | 292 | 28 |
| 274. | Teen Dinosaurs Got into Trouble | 17 Mar 09, 06:21 | 498 | 65 |
