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
Sep 19, 2014 06:30 AM ET
A new investigation in the quest to learn if Mars ever supported life begins this weekend with the arrival of NASA’s MAVEN spacecraft.
Sep 19, 2014 02:17 PM ET
If the launch occurs on time, Dragon is expected to reach the station at 7:30 a.m. EDT Monday. Continue reading →
Sep 18, 2014 12:00 PM ET
Analysis of 41 billion cosmic rays striking the Alpha Magnetic Spectrometer particle detector aboard the International Space Station shows an unknown phenomena that is 'consistent with a dark matter particle' known as a neutralino.
Sep 17, 2014 06:42 AM ET
NASA is hiring both SpaceX and Boeing to develop commercial space taxis that can fly astronauts -- and one day privately paying passengers -- to the space station and other planned outposts orbiting Earth. Continue reading →
Sep 17, 2014 01:00 PM ET
A surprisingly massive black hole has been discovered in the core of a small, compact galaxy -- a finding that appears to be a weird cosmic contradiction.
Sep 15, 2014 08:20 AM ET
An international team working on an unprecedented mission to orbit and land on a comet will attempt a touchdown on the smaller of the comet’s two lobes, a site tentatively named 'J', Rosetta scientists announced on Monday.
Sep 12, 2014 09:00 AM ET
More than two years after touching down inside Gale Crater, NASA’s Mars rover Curiosity has arrived at the place that drove scientists to select the landing site at the outset – Mount Sharp.
Sep 11, 2014 06:30 AM ET
Less than a month after saying he'd be "bitterly disappointed" if Virgin Galactic flights don't start by the end of the year, Richard Branson admits that we'll need to wait a little longer. Continue reading →
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