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The aurora is the only visible evidence that the. Sun and the Earth are a system connected by more than sunlight. The Sun continuously emits a stream of. Aug 3, 2017 - The aurora changes the ionospheric electrical conductance, which modifies currents that couple the ionosphere to the magnetosphere. • The aurora produces Students learn about the Kp index and relate it to predicting aurora. Activity 9. Auroral Activity and Latitude. 45. Students extract data from a graph and. What can auroras tell us about the Sun-Earth Connection? WARNING!!! stp.gsfc.nasa.gov/educ_out/summer01_pr/activities/Sunspot_Viewer.pdf. 3. Auroras are caused by electrons arriving directly from the Sun and guided by Earth's magnetic field into the polar atmosphere. In any of these cases, the aurora What causes the aurora? The “northern lights” are caused by collisions between fast-moving particles (electrons) from space and the oxygen and nitrogen gas in What causes the aurora? The “northern lights” are caused by collisions between fast-moving particles (electrons) from space and the oxygen and nitrogen gas in The aurora borealis and aurora australis – often called the northern lights and Auroras can appear as long, narrow arcs of light, often extending east to west.