July 27, 2015 9:15 AM EDT
Today a Magnitude 6.9 earthquake struck Alaska's Aleutian Islands followed by powerful aftershocks.
Fracking causes earthquakes
Earthquakes cause volcanic eruptions
Volcanic eruptions cause Ice Ages
July 21, 2015 4:40 PM EDT
Two new articles about human migration
Genetic studies link indigenous peoples in the Amazon and Australasia
The original Americans came from Siberia in a single wave no more than 23,000 years ago
July 21, 2015 4:14 PM EDT
One of the enduring mysteries of the human experience is how and why humans moved from hunting and gathering to farming. From their beginnings humans, like other mammals, depended on wild resources for sustenance. Then between 8,000 and 12,000 years ago, in a transitional event known as the Neolithic Revolution, they began to create and tend domestic ecosystems in various locations around the world, and agriculture was born. Despite decades of research into this major human advancement, scientists still don't know what propelled it.
July 20, 2015 9:09 AM EDT
The astronomical chart on the ceiling of the Kitora Tomb - located near the village of Asuka in Japan's Nara Prefecture, is known for gorgeous, colorful paintings at the four cardinal points of the compass. The ceiling of the tomb is decorated differently, with a map of the night sky, charting 68 constellations, with the stars picked out in gold leaf. Three concentric circles are drawn with vermilion, showing the movement of celestial objects, one of which is the sun. Read More ...
July 24, 2015 9:00 AM EDT
Why do some people have a lucid moment just before they die?
July 23, 2015 5:05 PM EDT
Social anxiety is a specific form of anxiety. It is an emotion characterized by a discomfort or a fear when a person is in a social interaction that involves a concern of being judged or evaluated by others. It is typically characterized by an intense fear of what others are thinking about them (specifically fear of embarrassment or humiliation, criticism, or rejection), which results in the individual feeling insecure and not good enough for other people, and/or the assumption that peers will automatically reject them. Social Anxiety
July 20, 2015 10:10 AM EDT
According to a new study - One night of sleep loss can alter clock genes in your tissues. Previous research has shown that our metabolism is negatively affected by sleep loss also linked to an increased risk of obesity and type 2 diabetes. Since ablation of clock genes in animals can cause these disease states, our current results indicate that changes of our clock genes may be linked to such negative effects caused by sleep loss. Sleep