The lectures begin at 6:30PM and will last approximately one hour. Doors open to the public at 6:00PM.
We provide informational materials about our research programs and light refreshments. Limited parking is available off Jocelyn and 32nd Streets in our lots, and there is street parking in the area. The campus is a three-block walk from Connecticut Avenue and two blocks south of Military Road.
Lectures Are Free, But Seating is Limited. Skip the registration line by signing up online, click here.
5251 Broad Branch Road, NW, Washington, DC 20015 - Greenewalt Building (PDF of directions)
When: Thursday, 24 September 2015
Title: "From Outpost to Icon: A Century of Science at Broad Branch Road"
Speaker: Shaun Hardy - How did a leafy tract on the rural fringe of Washington a century ago become home to a world-class think tank for scientific research? Join us for an evening of history and science as Carnegie librarian Shaun Hardy recounts the fascinating story of the Broad Branch Road campus – from its inception in 1914 as a “mission control center” for magnetic survey expeditions and sailing ships that crisscrossed the globe to its present role as an interdisciplinary research center for the Earth and planetary sciences.
Using historic photos from Carnegie’s archives we’ll explore the atom-smashers, radio telescopes, and other cutting-edge facilities erected “on the hill” over the past 100 years. We’ll also highlight some of the most significant breakthroughs by DTM and Geophysical Laboratory scientists, including the discovery of dark matter in the universe and top-secret research that helped shorten World War II.
Shaun's lecture will begin at 7:00 p.m.; a laboratory tour will precede the lecture at 6:00 p.m. on a first come first serve basis.
When: Thursday, 15 October 2015
Title: "Memoirs of a Mineral"
Speaker: Corliss Kin I Sio - Minerals record information that is vital to our understanding of Earth’s formation and evolution. Join me as I take you on a journey to explore a group of minerals that form from magmas. Hidden within these minerals are records of magmatic events that lead to volcanic eruptions and are recorded in the form of chemical and isotopic profiles. Discover how these profiles can be used to visualize the transport of magma inside a volcano.
When: Thursday, 5 November 2015
Title: "Water in the Moon's Interior: Truth and Consequences"
Speaker: Erik Hauri - The Moon has been an object of mystery, curiosity, wonder, observation, fascination and speculation since the dawn of mankind. It has inspired fear and worship, medieval and renaissance art, the modern calendar, hundreds of pieces of music, a race to space that consumed nearly 5% of the US budget at its height, conspiracy theories, a rock album that spent more than 14 years on the Billboard Top 100 charts, one good movie (2001: A Space Odyssey) and several bad ones.
Scientifically, the Moon is no less interesting. The Apollo program returned a literal treasure trove of samples totaling nearly 840 pounds. We have learned that the Moon formed from the debris ejected from an ancient giant impact of a planetary embryo with the Earth, and that it was covered in an ocean of magma that froze and produced “rockbergs” that make up the light-colored lunar highlands that we see today.
The Moon is too small to retain an atmosphere, and so any water that may have once been at the Moon’s surface has either remained frozen in polar craters or has evaporated into space. Yet new studies at Carnegie on lunar volcanic rocks, erupted more than three billion years ago, have determined that the Moon’s interior may have nearly as much water as the Earth’s interior. This represents a surprising discovery – another mystery - about an object that was once molten in the vacuum of space.
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