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Thursday, 1 January 2015

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New Project to Grow Lettuce on Mars

New Project to Grow Lettuce on Mars



A student team in the UK plans to grow lettuce on Mars by 2018 using the atmosphere and sunlight on the red planet. LettuceOnMars, a student project from the University of Southampton Spaceflight Society, has reached the finals of an international competition, run by Mars One, a Dutch non-profit organisation, to land experiments on Mars. It is one of the ten short-listed university projects that was selected for technical feasibility and popularity.

The winning payload will arrive on Mars in 2018 together with the official Mars One experiments. The aim of the Southampton project is to send a small greenhouse to Mars in which lettuce will be grown using the atmosphere and sunlight on Mars. The team now needs the votes of the general public to be chosen as the winner and realise their plan to grow lettuce on Mars.

"To live on other planets we need to grow food there. No-one has ever actually done this and we intend to be the first. This plan is both technically feasible and incredibly ambitious in its scope, for we will be bringing the first complex life to another planet," Project leader Suzanna Lucarotti, said.

"Growing plants on other planets is something that needs to be done, and will lead to a wealth of research and industrial opportunities that our plan aims to bring to the University of Southampton," said MS Lucarotti.

"We have tackled diverse sets of engineering challenges, including aeroponic systems, bio filters, low power gas pressurisation systems and failsafe planetary protection systems and then integrated them all into one payload on a tight mass, power and cost budget. We can build this here and now, the only step now is to win the public vote," Ms Lucarotti added.
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Wi-Fi may allow ISS robots to move around freely

Wi-Fi may allow ISS robots to move around freely


Robots at the International Space Station may soon be able to move around freely with help from the ISS's existing Wi-Fi.

Astronauts have shared the ISS with three small robots called SPHERES since 2006.
The robots are there to test whether menial tasks on the station can be automated, freeing up astronauts to do more interesting things.

At the moment, the bots are confined to a 2-metre-wide cube marked out by five ultrasound beacons, which transmit a locating signal that works like GPS does on Earth, 'New Scientist' reported.

If the SPHERES could travel around the whole station it would be much more useful, so Terry Fong at the NASA Ames Research Center in California and colleagues are trying to guide them using the ISS's existing Wi-Fi.

In an experiment, an astronaut floated around the US section of the station with a smartphone, measuring the varying signal intensity from two Wi-Fi routers at different points.

The team turned this data into a map capable of locating a SPHERE robot to within 1.59 metres, accurate enough to identify which ISS module it is in.

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New Microscopic Motion Detector Could Find Alien Life

New Microscopic Motion Detector Could Find Alien Life?? 



Swiss researchers have tested a new kind of life-detection device that's sensitive to motion rather than organic chemistry — and they say it could be used on future space missions to look for alien life. Closer to home, the mechanical nanosensor could verify whether a given drug has really, truly killed off cancer cells or nasty bacteria. "The system has the benefit of being completely chemistry-free," Giovanni Dietler of the Ecole Polytechnique Federale de Lausanne, or EPFL, said in a news release.
The sensor is basically a 200-micron-long cantilever. The stuff to be analyzed is deposited on the cantilever, and then a laser scans the surface for signs of motion. Scientists say one of the common signatures of life is movement: Even small microorganisms vibrate in response to their metabolic activity.
Dietler and his colleagues tested the system with bacteria, yeast and living cells, as well as soil and water from EPFL and its environs. The motion detector was triggered by the cells' vibrations. When the cells were killed off, the signals stopped. Dietler said the technology is most likely to be used for drug testing, "but we're still calling ESA and NASA to see if they're interested."



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— Alan Boyle
The research paper, "Detecting Extraterrestrial Life Through Motion," was published this week in the Proceedings of the National Academy of Sciences. In addition to Dietler, authors include Sandor Kasas, Francesco Simone Ruggeri, Carine Benadiba, Caroline Maillard, Petar Stupar, Helene Tournu and Giovanni Longo.