For the first time, NASA’s Interstellar Boundary Explorer, or IBEX, spacecraft reveals changing conditions at the edge of our solar system. The heliosphere changes size through the solar cycle, which affects the number of cosmic rays that reach Earth. Scientists now have a better understanding of the dynamic nature of our home in the galaxy.
First Images: The Solar Dynamics Observatory, SDO
NASA | Superstar Eta Carinae Shoots Cosmic Rays
NASA Mission Update: ULYSSES
Most Advanced Spacecraft Studies the Sun
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