Archaeological analysis of human remains can illuminate incredible truths about our ancient ancestors, revealing hidden truths about their daily lives that we wouldn't necessarily be able to find in written records. Other times, it can just be a damn tattletale.
Every sixty million years, the biodiversity of our planet's oceans mysteriously crashes. This strange boom and bust cycle goes back 500 million years, and we now might know why: rising continents make the oceans too shallow for species to survive.
In the ultimate cosmic cataclysm, two ultra-dense bodies collide. For less than a second, incredible amounts of super-charged particles explode forth. These blasts could wipe out most life on Earth...and it's probably happened dozens of times already.
Most radioactive isotopes of the lighter elements decay in minutes or less. But one particular isotope of carbon takes 6000 years to decay, and that fact has revolutionized archaeology. But why it does that has long been a complete mystery.
The Japanese Ministry of Education, Culture, Sports, Science and Technology say they've found leaked strontium 89 and 90 in dirt and plant samples around Fukushima—the first instance since the accident last month.