David McComas

Feb. 03, 2012

IBEX Spacecraft Intercepts ‘Alien’ Particles

IBEX studies the composition of the Milky Way by measuring the abundance of interstellar particles.

ibex, space, interstellar wind, interstellar medium

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.

sun, space, heliosphere, ena, charged particles, 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?

sun, solar wind, ulysses, cosmic rays

AVAILABLE IN ITUNES

Michael Pollan Talks Plants and Food

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Happy Thanksgiving!

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Mystery Box

Meet The Balloonatics

\tIt's crunch time for the 'balloonatics' at Macy's Parade Studio. The balloons themselves, which are designed and fabricated in a warehouse in New Jersey, are getting their final checkup before the Macy's Thanksgiving Day Parade. John Piper and Jim Artle take us around the studio and spill the secrets of inflation, explain how to calculate whether your balloon will float, and explain why the balloons look better after a little time in the sun.

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