Presented by Marusa Bradac. One of the greatest accomplishments in recent astrophysics is the creation of a model for the complete inventory of the Universe. All the observational data tells us with extremely high certainty that ordinary matter (every particle...

Presented by Kelly Gaffney. Movies have transformed our perception of the world. With slow motion photography, we can see a hummingbird flap its wings, and a bullet pierce an apple. The remarkably small and extremely fast molecular world that determines...

In this talk, Eduardo do Couto e Silva will explain that while the night sky appears calm, it is in fact populated by colossal explosions and cosmic conflagrations.

Presented by Sean Brennan. The Stardust mission returned from a 6-year voyage in January of 2006. During the mission it swept through the tail of comet Wild 2 (pronounced Vilt), collecting the microscopic particles streaming from it.

Presented by Sarah Church. The faint radio signal that fills our universe is the echo of the beginning of the universe. This signal, called the Cosmic Microwave Background radiation, was first detected by accident in 1964 but has since been...

Presented by JoAnne Hewett. Extra dimensions of space may be present in our universe. Their discovery would dramatically change our view of the cosmos and would prompt many questions. How do they hide? What is their shape? How many are...