University of Wisconsin–Milwaukee

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A Tour of the Solar System
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Jean Creighton, Director
Physics Building 150
1900 E Kenwood Blvd
Milwaukee, WI 53211


Asteroid and Comets Watch

Asteroid & Comet Watch

Friday Night Show
July 22 - August 1

In honor of NASA's The Year of the Solar System, Asteroid & Comet Watch will feature many different aspects of the comets in our galaxy. The show will take you on a journey into our past, 4.5 billion years ago, when it was believed that comets were the first solids to condense out of our solar nebula. This will include an in-depth look at what comets are composed of and how scientists are able to study them. You will also discover what the chances are of an asteroid colliding with our planet and what we could do to prevent it.

While traveling through the night's sky, we will also view a well-known asteroid called Apophis. Apophis is a near-Earth asteroid, predicted to have a small chance of striking our planet on April 13, 2036. During this portion of the show, we will examine the possibility of Apophis passing through what is known as a gravitational keyhole, risking future impact on the Earth or the Moon.