Contributor

We can't change when or how long we live. All that really counts is what we do. Space exploration has technical, political and mental challenges, but rewards us with surprising knowledge. It's one of humanity's noblest endeavors and the focus of my work since 1987.

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Author Stories
Jul 30, 2014 09:42 AM ET
Virgin Galactic's SpaceShipTwo, a six-passenger, two-pilot suborbital vehicle, returned to the skies for tests after a six-month hiatus. Continue reading →
Jul 28, 2014 09:40 PM ET
NASA’s long-lived Mars rover Opportunity broke another record this weekend. In addition to 10.5 years of operations on Mars, the rover now holds the off-Earth mileage record. Continue reading →
Jul 24, 2014 11:45 AM ET
Telltale pollution could reveal ET, study shows
Jul 18, 2014 12:44 PM ET
Europa hides an ocean of liquid water beneath its icy crust; NASA wants to seek out its life-giving potential. Continue reading →
Jul 17, 2014 04:00 PM ET
NASA is working on a low-tech solution to the problem of clothing its astronauts and others living aboard the International Space Station. Continue reading →
Jul 17, 2014 11:52 AM ET
Europe’s Rosetta comet probe has revealed that its target, Comet 67P/Churyumov-Gerasimenko, has a Siamese twin, a thrilling discovery for scientists preparing for Rosetta’s August rendezvous... but it will also be a huge challenge. Continue reading →
Jul 16, 2014 01:18 PM ET
What happens to carbon -- and other solid materials -- when the pressure is even greater, such as what exists in the cores of Jupiter, Saturn and giant planets beyond the solar system? The world's largest laser hopes to find out.
Jul 14, 2014 05:49 AM ET
A Cygnus cargo ship began a long-delayed, three-day journey to the International Space Station on Sunday following a successful launch aboard Orbital Sciences Corp’s fourth Antares rocket. Continue reading →
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