quote: The notion of landing wheels down on a runway is romantic, but it is tough to beat the safety and simplicity of a ballistic re-entry and parachute landing. The new generation of 'capsules' will be reusable, unlike Apollo-era tech. As great as the shuttle was it's ground handling and refurbishment was a manpower and cost nightmare.
quote: The J-2X engine is a redesign of the J-2 engine that carried astronauts to the moon during the 1960s and 1970s. ... The J-2X is the first new liquid oxygen and liquid hydrogen rocket engine made in 40 years ...
quote: No way a laser can give the thrust capacity of a chemical rocket.