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

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Michael Pollan Talks Plants and Food

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How Humpbacks Hunt With Bubbles

Humpback whales blow bubbles around schools of fish to concentrate them for easier capture. It's called a bubble net, says David Wiley, research coordinator for Stellwagen Bank National Marine Sanctuary, and it's visible as a ring of bubbles at the surface. Now, with underwater digital tracking tags and custom visualization software, whale researchers can see what the whales are doing underwater when they're bubble-netting.

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