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Lecture - Sun-Earth Interaction and Space Weather by David Alexander

Earth resides within the atmosphere of an active star, protected only by a thin sliver of atmosphere and an invisible bubble of magnetic field. The Sun produces a wide range of energetic phenomena, such as solar flares and coronal mass ejections, that interact with the Earth system, creating an array of physical responses from the beautiful (aurorae) to the devastating ("killer electrons"). By studying this dance between the Sun and the Earth, more prosaically Space Weather, we hope to understand not only the Earth but the new Earth-like planets recently discovered around other active stars.

 

In this talk, we will discuss the intricate ballet of the Sun-Earth interaction, including the dynamic sources of Space Weather at the Sun and their impacts at the Earth. We will explore the causes and characteristics of aurorae, the hazards of the active space environment during solar storms and how we can use these to learn about the possible habitation of other worlds.

 

Members $12, Tickets $18

 

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