Livescience 5,000-Year-Long Tsunami Record Found in Guano-Encrusted Sumatran Cave 2017-07-20T11:27:00.000000000-04:00 The discovery of sediment layers in a seaside cave represents the longest record of tsunamis in the Indian Ocean, and the clearest record of tsunamis anywhere in the world. Advanced Vision Algorithm Helps Robots Learn to See in 3D 2017-07-20T11:15:00.000000000-04:00 Researchers are improving the ability of robots to identify three-dimensional objects even if their shape is partially obscured. Unusual Phobia: Researchers Suggest New Reason for Fear of Bubbles 2017-07-20T11:11:00.000000000-04:00 Trypophobia is an unusual phobia -- people feel strongly disgusted when they see clusters of circle-shaped objects, such as bubbles or holes. Why Dog Breeds Look So Very Different, But Cats Don't 2017-07-20T11:08:00.000000000-04:00 Why don't pedigreed cats show the extremes in body size and shape that dog breeds do? 1 in 3 Cases of Dementia Could Be Prevented by Healthier Lifestyles 2017-07-20T10:52:00.000000000-04:00 Strategies aimed at helping people to be healthy could help to decrease the global numbers of dementia cases. Sen. John McCain's Brain Cancer: What Are Glioblastomas? 2017-07-20T10:25:00.000000000-04:00 Senator John McCain was diagnosed with a type of brain tumor called a glioblastoma, his office said yesterday (July 19). Humans Arrived in Australia 65,000 Years Ago 2017-07-20T07:52:00.000000000-04:00 A new study pushes back the first known evidence of human activity in Australia - to 65,000 years ago. Elon Musk Calls for Moon Base 2017-07-20T07:31:00.000000000-04:00 Elon Musk may be focused primarily on Mars, but he'd also like to see a human outpost on a world much closer to home. Will Melting Permafrost Release Global 'Methane Bomb'? 2017-07-20T07:29:00.000000000-04:00 Rising global temperatures are melting areas of permafrost that hold enormous stores of planet warming gases — but the risk of a doomsday methane bomb remains low. 13 Bizarre Things That Washed Up on Beaches 2017-07-20T07:10:00.000000000-04:00 What's that on the beach? Unusual objects can stump even ocean experts.