The Sun Spot

By Susannah Darling NASA Headquarters Imagine, if you will, that you are driving to your favorite restaurant. The traffic is bad, so you use your GPS to find the best route. To get your current location, your phone or GPS listens to a satellite in the Earth's upper atmosphere. This satellite sends the GPS system …

By Miles Hatfield NASA's Goddard Space Flight Center On Friday, June 28, NASA's Solar Dynamics Observatory observed a solar prominence erupting off the limb, or edge, of the Sun. Solar prominences are loops of comparatively cold, dense solar material that become suspended in the Sun's super-hot outer atmosphere. Because they are colder and denser than …