The Moon may not be quite as appealing as Mars…– Henry Spencer
The Moon may not be quite as appealing as Mars, but it’s still a complex and poorly understood world, with many questions still unanswered.
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The Moon may not be quite as appealing as Mars, but it’s still a complex and poorly understood world, with many questions still unanswered.
The Apollo programme of the 1960s had some weight problems, too; in particular, the lunar lander needed some fairly drastic weight-reduction work.
The Orion capsule uses an escape system quite like that of the Apollo spacecraft in the 1960s and 70s: an ‘escape tower’ containing a solid-fuel
It’s true that Apollo 10’s lander was overweight. Late in the craft’s development, it became clear that its ballooning weight was endangering the whole mission.
Sure, there were hopes that Constellation’s systems could later be adapted to support more ambitious goals. But Apollo had those hopes, too. It didn’t work
Historically, the U.S.’s big launchers fly seldom enough that their costs are dominated by annual upkeep of facilities and staff, not by the actual cost
Liquid oxygen is one of the cheapest manufactured substances on Earth. In large quantities, it costs pennies per kilogram – cheaper than milk or beer.
The original specifications for Apollo navigation called for the ability to fly a complete mission, including a lunar landing, with no help from Earth –
Spaceflight, especially in the Mercury spacecraft, clearly wasn’t going to be much like flying an airplane.
One of the headaches of high-tech test programmes is having to debug the test arrangements before you can start debugging the things you’re trying to
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