Speaker's Night: Earth's Battered Moon: Understanding how impacts from space have shaped our planet

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.

Earth's Battered Moon (Three Minute Thesis)

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Who can attend: Everyone including non-members
Fee: Free
Reservation not needed
Location: Ontario Science Centre (Studio 2, Level 2)