- NYT’s David Brooks: Obama has ‘manhood problem’ in Middle East
- Ted Cruz thanks Obama for denying visas to terrorists
- Survivors recall chaos, fear in Everest avalanche
- General Mills apologizes for ‘right to sue’ confusion, reverses policy
- Dealer wanted in U.S. for art fraud nabbed in Spain
- Easter morning delivery for space station
- Boxer Rubin ‘Hurricane’ Carter dies at 76
- Probe could complicate Rick Perry’s prospects
- Ukraine, Russia trade blame for eastern shootout
- Obamas head to church on Easter morning
Women losing coverage under Obamacare, too
Topic - James Gilland
"[BTE Dan] starts with reasonable technical information, ion engines and nuclear power and those sorts of things," said James Gilland, a researcher at the Ohio Aerospace Institute who studies space propulsion. "But when he extrapolates them in power and size, everything breaks down. You can't just linearly scale this stuff. I disagree with his statement that we have the technology now to do this. We don't."
"Galactic cosmic radiation damage to human beings is one of the most limiting design criteria for a spaceship," he said. "Right now, from what we know, we cannot shield a human being to the level that the safety people tell us we would need."