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Spacecraft

— Space

Lockheed Martin completes assembly of asteroid-sampling OSIRIS-REx spacecraft

Lockheed Martin has completed final assembly of NASA's Origins, Spectral Interpretation, Resource Identification, Security, Regolith EXplorer (OSIRIS-REx) deep-space probe. The unmanned spacecraft, designed to rendezvous with an asteroid and return samples to Earth, will now undergo five months of environmental testing at the company’s Space Systems facilities near Denver before delivery to the Kennedy Space Center in Florida.

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— Space

Lunar detour could lighten the launch load for manned missions to Mars

Early last year, researchers at MIT floated the idea of "gas stations" in space that have the potential to cut the costs of future missions to the Moon considerably. Now a new study out of MIT says that, although possibly a little out of the way, the Moon would make a worthwhile refueling pit stop for manned missions to Mars by reducing the mass of a launch from Earth by 68 percent.

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— Space

NASA tests foldable cloth heat shield in Mars entry simulation

As spacecraft for manned and planetary missions get larger, so do their heat shields – which are becoming very big indeed. To avoid the day when the shield becomes too large for any existing or planned launcher, NASA’s Ames Research Center in California is developing the Adaptive Deployable Entry and Placement Technology (ADEPT) heat shield, which uses carbon-fiber cloth and can be folded up like an umbrella. The cloth heat shield recently completed tests that simulated entering the Martian atmosphere.

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— Physics

Researcher's experimental ion drive outperforms NASA's HiPEP engine

It seems as if the age of the bench-top breakthrough in rocket science is not a thing of the past. Dr Patrick Neumann of the University of Sydney has developed a new ion drive as part of his PhD thesis that is claimed to outperform the best one devised by NASA. According to Neumann, his new drive, which is still in the experimental stage, is more efficient than the latest High Power Electric Propulsion (HiPEP) ion engine and holds the promise of "Mars and back on a tank of fuel."

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— Space

Spiky Hedgehog robots to hop around asteroids and comets

As demonstrated by the bumpy landing of ESA's Philae lander on comet 67P/Churyumov–Gerasimenko, exploring comets, asteroids, and small moons can be difficult due to their low gravity. Not only can landing on one be like trying to alight on a trampoline, but roving around their surfaces is next to impossible because the negligible gravity offers practically no traction. To overcome this, a team of engineers is developing Hedgehog, a completely symmetrical robot rover for low-gravity exploration that moves by hopping.

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— Space

Self-healing material could plug holes in space ships

As the movies have shown us, space travel is an intimidating prospect, what with the possibilities of running out of air, the rocket engines conking out, or the shipboard computer deciding to bump off the crew. Another danger is fast-flying orbital debris piercing the hull. Scientists may be on their way to a solution to that one, however, in the form of a new self-healing material.

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— Space

Designing a rover to mine for water on Mars

Should we ever want to set up any sort of base or colony on Mars, it's inevitably going to require water to support life, but transporting enough liquids to the Red Planet is likely to be impractical. With NASA and others planning manned Mars missions, a team based in Singapore is already working on a specialized Martian rover that could be used to "mine" for water below the planet's crimson surface.

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— Space

Canadian firm patents inflatable space elevator

In space travel, the first step is always the most expensive, but why blast-off in a rocket if you can catch a ride on a space elevator? Canadian space firm Thoth Technology has received a US patent for an elevator to take spacecraft and astronauts at least part way into space. If it's ever built, the 20 km (12.4 mi) high Thothx inflatable space tower holds the promise of reducing launch costs by 30 percent in terms of fuel, and may even replace some classes of satellites.

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