
Feb. 03, 2012
IBEX Spacecraft Intercepts ‘Alien’ Particles
IBEX studies the composition of the Milky Way by measuring the abundance of interstellar particles.

Oct. 16, 2009
Surveying the Heliosphere
A series of journal articles published this week draw a new picture of our solar system's heliosphere, the bubble carved out in the interstellar medium by the solar wind.

Sep. 26, 2008
Solar Winds
New research suggests that the solar wind is weaker now than it has been in the past. What does that mean, and why does it matter?
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