Astronomy and Astrophysics

Testing Extra Dimensions
Jonathan Feng, University of California, Irvine

The question of how many spatial dimensions there are is among the most tantalizing issues in particle physics and cosmology. In particular, extra dimensions may help explain key features of our world, such as the weakness of gravity and the existence of dark matter. I will discuss these problems, the role of extra dimensions in proposed solutions, and the implications for a wide variety of near future experiments.


Discover Magazine: Black Holes Made Here

Science Magazine: Searching for Gravity's Hidden Strength

Sky and Telescope: Delving into Extra Dimensions

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Astronomy and Astrophysics

Kavli Frontiers of Science PRO

This channel contains session presentations that cover astronomy and astrophysics topics from the Kavli Frontiers of Science symposium series of the National Academy of Sciences.

For additional symposium information, please visit our web site (

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  • Patrick Cullis

    Time-lapse of all the major conjunctions of Venus for 2012 (minus the June 5 solar transit.) Taken over the iconic Flatirons of Boulder, CO.

    by Patrick Cullis

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