Erik Asphaug

Mar. 29, 2013

How Cosmic Collisions Have Shaped Our Solar System

Some of our solar system's landmarks can trace their origins to massive impacts.

moon, saturn, asteroid, collisions, impact, comet, meteor, meteorite, lunar formation

Oct. 19, 2012

Scientists in the Dark Over Birth of the Moon

Two new studies present very different ideas about how the Moon was formed -- a riddle that one scientist says may never be solved.

moon origin, lunar origin, origin of the moon, how the moon was created, lunar, impact, astronomy, solar system

Aug. 05, 2011

Are The Moon’s Highlands Due to A Cosmic Collision?

Planetary Scientist Erik Asphaug describes the evidence for an ancient lunar collision.

moon lunar impact crash

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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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