A new Symphony of Science video has been released!   Nerd Alert!

This one features, among others, Stephen Hawkings dropping a beat.

The beginning of the Universe is something I struggle to wrap my thoughts around.  It is experimentally verified (in dozens of different, overlapping ways) as the beginning of time and space.
Thoughts?

The jungles of Earth are sometimes so thick and remote that explorers have not penetrated into the deepest, darkest reaches of them.  Within the inner-most areas of these isolated and dense jungles, tribes of humans live as they have for thousands of years, having never been contacted by the outside world!

There are a few dozen tribes of people who have never been contacted by the outside world.  They are documented using airplanes, the locations of their villages are mapped and the forests around them are deemed "off limits" to logging and hunting to preserve the people's way of life.

A previously unknown tribe in the rain forests of Western Brazil has been photographed using an airplane for the first time.  Logging companies are already too-close for comfort to the tribe's villages.

Should this tribe be contacted or left alone?

Read this article.  At the end of each short section of paragraphs, click on the 'next' button to take you through the slide-show of pictures and explaining text.  In some of the photos, you can see the villagers pointing at the plane with looks of curiosity on their faces.

http://www.wired.com/wiredscience/2011/02/uncontacted-tribe/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+wiredscience+%28Blog+-+Wired+Science%29%2Ffeed%2F&pid=957&viewall=true