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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Every Spring, This Bird Struts its Stuff

\tThe Greater sage-grouse makes its living in sagebrush habitats across the western U.S. and Canada. Every year from late February to May, male sage-grouse perform a striking dance routine each morning at dawn. Jason Robinson, upland game coordinator for the Utah Division of Wildlife Resources, breaks down the dance and describes challenges the birds face in Utah.

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