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Our Glaciers: Then and Now activity kit helps you see the changes taking place in glaciers around the world. See all our activity kits and classroom activities.

Space Weather Today

Like weather on Earth, space weather is constantly changing. On Earth you can simply look out the window to see if it is sunny or raining. Scientists use a host of telescopes, magnetometers, radiation sensors, and other instruments scattered around the globe and onboard a fleet of spacecraft to monitor, and sometimes even predict, space weather.

On 21 April, 2010, the Solar Dynamics Observatory captured the launch of a filament from the <a href="/sun/atmosphere/photosphere.html">surface of the Sun</a>.  These are the most detailed images of the Sun ever taken.  The images show light in the <a href="/physical_science/magnetism/em_ultraviolet.html">ultraviolet</a> part of the <a href="/physical_science/magnetism/em_spectrum.html">electromagnetic spectrum</a>.  The Sun is now entering another period of <a href="/sun/solar_activity.html">solar activity</a> after several years of a relatively quiet Sun.  Activity on the Sun varies on an <a href="/sun/activity/sunspot_cycle.html">cycle of about 11 years</a>.<p><small><em>Image courtesy of NASA/Solar Dynamics Observatory and AIA Consortium</em></small></p>

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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA