Terra Sapiens: The Human Chapter in the History of Earth
Dr. David Grinspoon, Library of Congress

Considering that Earth’s history extends back more than four billion years, our species is an absolute newcomer, though one with significant impact. Dr. Grinspoon will discuss the
current human-dominated phase of our planet¹s life in a broader context; juxtaposed against previous geological eras in Earth¹s history, as well as what¹s known from studying changes on other planets. The goal is to better understand the essence of our current moment in geological time and what it means for intelligent life in the universe and for the future of our civilization.

Host: Dr. Frank Summers

Recorded live on April 29, 2014 at the Space Telescope Science Institute in Baltimore, MD, USA

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#مصلطحات_ألعاب هو برنامج اسبوعي نشرح فيه في كل حلقة مصطلح من مصطلحات الألعاب، وهالأسبوع بنشرح الفرق بين الألفا والبيتا والديمو

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Backyard stargazers get a monthly guide to the northern hemisphere’s skywatching events with “Tonight’s Sky.” May features the Eta Aquarid meteor shower, and could feature a meteor storm later in the month as Earth passes through the debris from Comet 209P/LINEAR.

“Tonight’s Sky” is produced by HubbleSite.org, online home of the Hubble Space Telescope. This is a recurring show, and you can find more episodes — and other astronomy videos — at HubbleSite.org.

الصياد الخطير يلقن الحيوانات البريئة درساً لن ينسوه طول حياتهم اللي راح ينتهي قريب! بطلقة من بندقية هذا الصياد المتوحش! يا للهول.لايك اذا تبينا نصيد اكثر!
اسم اللعبة : CABELA’S BIG GAME HUNTER PRO HUNTS
http://www.activisionhunts.com/gamespage
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Wherever news breaks, whenever news breaks, John Oliver will bring it to you on Sunday. Last Week Tonight with John Oliver premieres April 27 at 11PM.

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