April 2009

April 3: Monthly Meeting

Extrasolar Planets and the Search for Habitable Worlds

Sara Seager
Sara Seager is the Ellen Swallow Richards Associate Professor of Planetary Science and Associate Professor of Physics at MIT. Before joining MIT in 2007, she spent four years on the senior research staff at the Carnegie Institution of Washington preceded by three years at the Institute for Advanced Study in Princeton, NJ. Her PhD is from Harvard University and her BSc in math and physics from the University of Toronto. Professor Seager is the 2007 recipient of the American Astronomical Society’s Helen B. Warner Prize.

Professor Seager’s research focuses on theoretical models of atmospheres and interiors of all kinds of exoplanets. Her research has introduced many new ideas to the field of exoplanet characterization, including work that led to the first detection of an exoplanet atmosphere. She was part of a team that co-discovered the first detection of light emitted from an exoplanet and the first spectrum of an exoplanet. Sara Seager,http://seagerexoplanets.mit.edu/ arXiv.org: Sara Seager,http://arxiv.org/find/astro-ph/1/au:+Seager_S/0/1/0/all/0/1
A Better Galaxy Guide: Early Spring

A Better Galaxy Guide: Early Spring

: By Craig Cortis
We all know about the wealth of galaxies that populate the sky beginning around this time of year, but if you’re not an experienced deep-sky observer, where do you begin?

Saturn's Moons

: By Glenn Chaple
Now that Saturn is past opposition and well-placed in the evening sky, take the opportunity to view and identify some of its moons you’re never before seen. A moderately high magnification will increase contrast and make the fainter moons more readily visible.

Saturn's Disappearing Rings

: By Dave Huestis
The title of this column may sound alarming to some. And if you took a quick telescopic look at Saturn on the next clear night it would appear that the sixth planet from the Sun seems to be losing its ring system. While astronomers believe Saturn’s rings will eventually all “rain” down onto his cloud tops in 50 to 100 million years and cease to exist, the current scenario is not so dire.

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