Curiosity Detects 'Habitable' Earth-Like Past on Mars, But How Did Oxygen Get There?

Astronomers Discover a Bizarre Spiral Object Swirling Around The Milky Way's Center

We Can Finally Read The 'Clock' That Tells How Long Human Cells Have Left to LiveThis Is The Closest Look We've Ever Had at The Proteins Linked to Alzheimer's Disease

These Are The Ways The Alcohol Industry Is Distorting The Facts on Cancer LinksParasites Inside Your Body Could Actually Be Protecting YouDoctors Found a Stone Almost The Size of an Ostrich Egg in a Man's Bladder

Here Are 6 of The Filthiest Things You Touch All The TimeNew Genetic Discovery Explains The Skin-Blistering 'Vampire' Disease

Zika Virus Could Actually Be Turned Into a Weapon Against Brain Cancer

Trials of Breakthrough Cancer Treatment Were Just Put on Hold After a Patient's DeathThe Great Pacific Garbage Patch Is So Big, Invasive Species Are Now Thriving On It

Global Warming Is Having an Unexpected (And Thrilling) Impact on BaseballDeluges of Antarctic Meltwater Threaten to Collapse The Oceans' Circulation Currents

NASA Assessment Finds Sea Levels Have Risen Over 9 Centimeters in Just 30 YearsCanadian "Turbocharged" Superpigs Are Heading South in a US Invasion