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Earth Day 2009 Web Site
What have you done for Mother Earth lately?
Earth Day 2009 is April 22.
Visit the Earth Day web site for events schedule and more.
Sun-Earth Day 2009 Web Site
Check out the Space Weather Media Viewer, the Technology Through Time Series and a wealth of activities, information, and materials on the Sun-Earth Day 2009 web site.
Solar Week Web Site
Once every fall and spring since 2000, Solar Week provides a week-long series of web-based educational classroom activities and games geared for upper-elementary, middle and high school students, with a focus on the Sun-Earth connection.
Feature Story
IBEX Explores Galactic Frontier, Releases First-Ever All-Sky Map
Still from animation portrays how the entire sky is flattened to the two-dimensional maps that IBEX presents. Credit: NASA/Goddard Space Flight CenterLarger Image
NASA's Interstellar Boundary Explorer, or IBEX, spacecraft has made it possible for scientists to construct the first comprehensive sky map of our solar system and its location in the Milky Way galaxy. The new view will change the way researchers view and study the interaction between our galaxy and sun.
The sky map was produced with data that two detectors on the spacecraft collected during six months of observations. The detectors measured and counted particles scientists refer to as energetic neutral atoms.
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Feature Stories
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IBEX Releases First-Ever All-Sky Map
The IBEX mission science team has constructed the first-ever all-sky map of interactions occurring at our solar system's edge, where the sun's influence wanes.
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Cosmic Rays Hit Space Age High
Planning a trip to Mars? Take plenty of shielding. According to sensors on NASA's ACE (Advanced Composition Explorer) spacecraft, galactic cosmic rays have just hit a Space Age high.
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Flares Responsible for Outsized Heat of Sun's Corona
New observations made with instruments aboard Japan's Hinode satellite reveal the answer to why the Sun's corona is so darned hot.
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Ulysses Spacecraft Ends Historic Mission of Discovery
Ulysses, a joint NASA and European Space Agency mission, officially ceased operations today, after receiving commands from ground controllers to do so.
 "Animation of solar wind hitting the Earth's magnetosphere from the right. The magnetic field is designated with lines and the animation shows how the particles interact with the field as they pass by.")
 "On the left is the interstellar medium and on the right is the solar system surrounded by the heliosphere. A bow shock is shown outside the heliosphere at the boundary where the two meet.")
 "green aurora over houses")
 "close-up of part of the sun with magnetic field lines shown representing the Sun' magnetic field")
 "Hinode imagery of part of the sun showing a large black sunspot and its filamentary penumbrae in the upper left, and solar granulation in the rest of the image.")
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