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
Aug 29, 2014 06:00 AM ET
A three-way race to build a commercially operated spaceship to shuttle astronauts -- and other paying customers -- to and from low-Earth orbit is close the finish line, with NASA aiming to award development and flight service contracts as early as next week.
Aug 28, 2014 02:00 PM ET
Scientists believe they have spotted a rocky planet in the making around a young, sun-like star 1,200 light years away in the constellation Vela.
Aug 27, 2014 02:22 AM ET
Launch of SpaceX’s next Falcon 9 rocket is on hold, pending a review after a related test vehicle self-destructed during a flight test last week. Continue reading →
Aug 27, 2014 01:00 PM ET
Astronomers have spotted the telltale gamma rays from a supernova explosion, revealing its innermost secrets.
Aug 20, 2014 01:00 PM ET
The subglacial lakes in Antarctic are home to at least 3,931 species of microbes, a finding that resolves earlier controversies over whether life can exist in the dark, subzero temperatures.
Aug 14, 2014 02:01 PM ET
Thanks to a massive effort by 30,716 volunteers, scientists have pinpointed what appear to be seven precious specks of dust from outside the solar system, each bearing unique stories of exploded stars, cold interstellar clouds and other past cosmic lives.
Aug 9, 2014 01:05 AM ET
A prototype inflatable braking system to land heavy payloads on Mars aced a debut test flight in June. Continue reading →
Aug 7, 2014 03:15 PM ET
The stellar nursery that produced our solar system separated out from the rest of the galaxy some 30 million years before the sun was born, new research shows.
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