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.

Author Stories
Mar 3, 2015 01:46 PM ET
The 20-year mission of a U.S. military weather satellite came to an abrupt end last month after a power system temperature spike and an apparent explosion.
Feb 28, 2015 05:29 PM ET
NASA flight engineer Terry Virts paid respects to Leonard Nimoy from the International Space Station.
Feb 26, 2015 06:04 PM ET
Russia says it will support U.S. plans to keep the International Space Station operating through 2024, but then wants to split off three still-to-be launched modules to form a new orbital outpost.
Feb 25, 2015 01:10 PM ET
Astronomers have discovered an out-of-place supermassive black hole -- 12 billion times more massive than the sun -- that inexplicably formed when the universe was less than 900 million years old.
Feb 24, 2015 05:03 PM ET
Last night, the third stage of a spent Chinese rocket returned into the atmosphere in grand fashion, sparking a family of spectacular fireballs as it incinerated over the western part of North America.
Feb 20, 2015 11:29 AM ET
A non-profit Dutch organization spearheading an effort to colonize Mars whittled down its list of candidate settlers to 100 men and women interested in permanent relocation a decade from now.
Feb 18, 2015 07:00 AM ET
The world's biggest and most powerful particle smasher is gearing up for hunt for new particles, including mysterious dark matter and clues for supersymmetry.
Feb 19, 2015 07:00 AM ET
NASA this week begins work to reassemble parts of the International Space Station to create parking spots for two commercial space taxis.
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