College/Shaw Library: Earth's Battered Moon

Tuesday, October 24, 2017 -
7:00pm to 8:00pm

Just like the Earth, the Moon is about 4.5 billion years old. It has been and continues to be constantly bombarded by meteorites. Some suggest that this rate of bombardment has remained constant in the past couple of billion years. The Moon's surface without any substantial atmosphere or tectonic activity serves as a time capsule, helping us detangle Earth's history. The only way to see if the bombardment rate has changed is to have an age for every single crater, an extremely difficult task using traditional crater dating methods. Recently, it has been shown that the rockiness of large craters' ejecta provides an alternative means for estimating the ages of Copernican craters (younger than roughly one billion years old). This talk will focus on exploring the rate of bombardment in the past billion years.

Presented by Sara Mazrouei, a graduate student of University of Toronto's Sigma Xi chapter.

Sigma Xi, is an international honor society dedicated to the encouragement of research in the pure and applied sciences. The University of Toronto's Sigma Xi chapter encourages scientific research and promotes a close scientific community with scientists at the university and neighbouring institutions.

Who can attend: Everyone
Fee: Free
Registration: Not required
Organized by: Toronto Public Library and Sigma Xi - University of Toronto Chapter
Location: College/Shaw Library, 766 College Street, Toronto, ON  M6G 1C4