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Submission Summary: 0 pending, 3 declined, 2 accepted (5 total, 40.00% accepted)

Space

Submission + - New Molecule Could Lead To Better Rocket Fuel (chemweb.com)

MithrandirAgain writes: Trinitramid is the name of the new molecule that may be a component in future rocket fuel. This fuel could be 20 to 30 percent more efficient in comparison with the best rocket fuels available today, according to researchers. The discovery was made at the Royal Institute of Technology (KTH) in Sweden.

"A rule of thumb is that for every ten-percent increase in efficiency for rocket fuel, the payload of the rocket can double. What's more, the molecule consists only of nitrogen and oxygen, which would make the rocket fuel environmentally friendly. This is more than can be said of today's solid rocket fuels, which entail the emission of the equivalent of 550 tons of concentrated hydrochloric acid for each launch of the space shuttle," says Tore Brinck, professor of physical chemistry at KTH.

Science

Submission + - Space Tourism Rockets May Help Shrink The Icecaps (wired.com)

MithrandirAgain writes: A new study from several scientists at the Aerospace Corporation claims spaceships that rely on rubber based fuel could help cause climate change. The fuel apparently expels a black carbon soot into the stratosphere when burned with nitrous oxide, which could be contributing to global climate changes, like shrinking the icecaps. However, the authors are careful about their study being an end-all study and are “inviting others to take a look.”
Virgin Galactic, whose SpaceShipTwo just made its first solo flight (and uses the type of fuel discussed in the study), is listening to the scientists concerns, CEO George Whitesides saying "I think we and others in the industry welcome the opportunity to talk about all of these issues..." SpaceShipTwo does use a hybrid engine, "because of its significantly lower environmental impact than other designs.” and Whitesides stresses “I think as we look at this more, we’ll find the impact will be far smaller than that set out in the paper... In any case, I welcome the conversation.”

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