Archive for the ‘space travel’ category: Page 425

Feb 23, 2016

Can a tree grow in space?

Posted by in categories: engineering, food, materials, satellites, space travel

Satellites and spacecraft are generally complex to build on the ground, expensive to launch and obsolete in a decade or less.

These objects end up floating in orbit around the planet contributing to the pollution surrounding the Earth. But what if there was an alternative?

That’s the question David Barnhart, director of USC’s Space Engineering Research Center and lead for the Space Systems and Technology group for the USC Information Sciences Institute, is contemplating. What if we could just “grow” spacecraft, repurpose a hybrid of inorganic and organic materials and even allow food to grow in space?

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Feb 23, 2016

NASA, Made in Space think big with Archinaut, a robotic 3D printing demo bound for ISS

Posted by in categories: 3D printing, government, robotics/AI, space travel

MOFFETT FIELD, California — Within five years, companies could begin in-orbit manufacturing and assembly of communications satellite reflectors or other large structures, according to Made in Space, the Silicon Valley startup that sent the first 3D printer to the International Space Station in 2014.

As Made in Space prepares to send a second 3D printer into orbit, the company is beginning work with Northrop Grumman and Oceaneering Space Systems on Archinaut, an ambitious effort to build a 3D printer equipped with a robotic arm that the team plans to install in an external space station pod, under a two-year, $20 million NASA contract. The project will culminate in 2018 with an on-orbit demonstration of Archinaut’s ability to additively manufacture and assemble a large, complex structure, said Andrew Rush, Made in Space president.

NASA’s selected the Archinaut project, officially known as Versatile In-Space Robotic Precision Manufacturing and Assembly System, as part of its Tipping Points campaign, which funds demonstrations of space-related technologies on the verge of offering significant payoffs for government and commercial applications. Archinaut was one of three projects NASA selected in November that focus on robotic manufacturing and assembly of spacecraft and structures in orbit.

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Feb 22, 2016

Traveling to Mars could be a lot easier and quicker than ever

Posted by in category: space travel

New technology could take us to Mars in as fast as 3 days.

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Feb 22, 2016

Could we get to Mars in 3 days? Nasa’s considering Photonic Propulsion tech

Posted by in category: space travel

Interstellar space travel is still a matter of science fiction. With our current propulsion systems, it would take millennia to really travel on an interstellar level. However, science is now looking towards new propulsion systems to make interstellar reach possible in significantly less time.

One such system is called Photonic Propulsion, and it’s an insanely interesting idea. The video you see above is a quick summary of a talk given by Philip Lubin of University of California Santa Barbara. It’s a two minute selected sampling of a much larger talk, which you can watch in the source link below.

Continue reading “Could we get to Mars in 3 days? Nasa’s considering Photonic Propulsion tech” »

Feb 21, 2016

Asteroid Art Gallery: NASA To Open Art Gallery On The Asteroid Bennu

Posted by in categories: security, space travel

The art gallary of space.

Are you tired looking for a gallery space to exhibit your artwork? Well, now you have a chance to show off your work in an asteroid art gallery, thanks to NASA.

According to CNN, the space agency is inviting people to send their artworks to an asteroid on its new spacecraft: the Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer, or OSIRIS-REx. The mission, led by the University of Arizona, will also collect a sample of the asteroid Bennu and return it to Earth for study for the first time in history.

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Feb 21, 2016

Sudan Vision Daily — Details

Posted by in categories: nanotechnology, particle physics, quantum physics, space travel

Love on a Subatomic Scale.

When talking about love and romance, people often bring up unseen and mystical connections. Such connections exist in the subatomic world as well, thanks to a bizarre and counterintuitive phenomenon called quantum entanglement. The basic idea of quantum entanglement is that two particles can be intimately linked to each other even if separated by billions of light-years of space; a change induced in one will affect the other. In 1964, physicist John Bell posited that such changes can occur instantaneously, even if the particles are very far apart. Bell’s Theorem is regarded as an important idea in modern physics, but it seems to make little sense. After all, Albert Einstein had proven years before that information cannot travel faster than the speed of light. Indeed, Einstein famously described the entanglement phenomenon as “spooky action at a distance.” In the last half-century, many researchers have run experiments that aimed to test Bell’s Theorem. But they have tended to come up short because it’s tough to design and build equipment with the needed sensitivity and performance, NASA officials said. Last year, however, three different research groups were able to perform substantive tests of Bell’s Theorem, and all of them found support for the basic idea. One of those studies was led by Krister Shalm, a physicist with the National Institute of Standards and Technology (NIST) in Boulder, Colorado. Shalm and his colleagues used special metal strips cooled to cryogenic temperatures, which makes them superconducting — they have no electrical resistance. A photon hits the metal and turns it back into a normal electrical conductor for a split second, and scientists can see that happen. This technique allowed the researchers to see how, if at all, their measurements of one photon affected the other photon in an entangled pair. The results, which were published in the journal Physical Review Letters, strongly backed Bell’s Theorem. “Our paper and the other two published last year show that Bell was right: any model of the world that contains hidden variables must also allow for entangled particles to influence one another at a distance,” co-author Francesco Marsili, of NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, California, said in a statement. There are practical applications to this work as well. The “superconducting nanowire single photon detectors” (SNSPDs) used in the Shalm group’s experiment, which were built at NIST and JPL, could be used in cryptography and in deep-space communications, NASA officials said. NASA’s Lunar Atmosphere Dust and Environment Explorer (LADEE) mission, which orbited the moon from October 2013 to April 2014, helped demonstrate some of this communications potential. LADEE’s Lunar Laser Communication Demonstration used components on the spacecraft and a ground-based receiver similar to SNSPDs. The experiment showed that it might be possible to build sensitive laser communications arrays that would enable much more data to be up- and downloaded to faraway space probes, NASA officials said.

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Feb 21, 2016 :: Aerospace Illustration

Posted by in categories: nuclear energy, space travel

The first serious attempt to design a ship capable of travelling to the nearest stars. Weighing 50,000 tonnes, powered by nuclear fusion, travelling at 12% of the speed of light, the journey time would be close to 50 years.

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Feb 21, 2016

Photonic Laser Propulsion to send a 100 kg vehicle to Mars in 3 days and to get to wafercraft to 30% of the speed of light

Posted by in categories: robotics/AI, space travel

Philip Lubin describes his appraoch to achieving laser driving spacecraft propulsion in the near term.

100kg robotic craft could be sent to Mars in 3 days.
1kg could go overnight to Mars.
50–100 GW could send a wafercraft to 30% of the speed of light and i would involve 10 minutes.

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Feb 20, 2016

Reaching Mars in a few days? It’s possible, NASA video says

Posted by in category: space travel


A new video released by the space agency discusses the possibility of speeding up our missions to other worlds by harnessing the power of lasers.

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Feb 19, 2016

Photonic propulsion could send aircraft to Mars in ‘a few days’

Posted by in category: space travel

Researchers at the University of California Santa Barbara are aiming to use photonic propulsion technology to get aircraft to relativistic speeds, or more than one tenth of the speed of light.

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