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Category: space travel

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NASA recently provided $10 million in funding to Ad Astra Rocket Company of Texas for further development of its Variable Specific Impulse Magnetoplasma Rocket (VASIMR), an electromagnetic thruster capable of propelling a spaceship to Mars in just 39 days. NASA’s funding was part of the “12 Next Space Technologies for Exploration Partnership.” Ad Astra’s rocket will travel ten times faster than today’s chemical rockets while using one-tenth the amount of fuel.

The VASIMR system would cut the trip to Mars by months according to Franklin Chang Diaz, a former MIT student, NASA astronaut, and now CEO of Ad Astra.

According to Diaz, “this is like no other rocket that you may have seen in the past. It is a plasma rocket. The VASIMR Rocket is not used for launching things; it is used for things already in orbit. This is called “in-space propulsion.”

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Interstellar is one of the best sci-fi movies of the last decade, imagining a post-apocalyptic human population that needs to be saved from a dying Earth. A nearby black hole has the answers to humanity’s problems, and the brilliant script tells us we can enter a black hole and then use it to transcend space and time. In the film, the black hole also leaks out information that can save us, and it is captured by a complex computer as it’s being entered. That might seem implausible, but since we don’t know a lot about how black holes work, we can certainly accept such an outlandish proposition in the context of the movie.

In real life, however, physicists are trying to figure out how to access the secrets of a black hole. And it looks like some researchers have a theory to retrieve information from it, though it’s not quite as exciting as the complex bookcase that Interstellar proposes.

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Black holes have an immense gravitational pull that affects everything around them, which makes data collection a major issue. Not even light can escape a black hole, and we’re far from figuring out how to reach one and “see” inside it.

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New book by NASA JPL Curiosity Rover engineer has some hard truths about U.S. space policy. A good read.

A Mars Curiosity rover team lead at NASA’s Jet Propulsion Laboratory (JPL) writes in a forthcoming first-person narrative that the space agency as a whole “doesn’t do enough flight projects to forge a broad set of practical skills across [NASA].”

Adam Steltzner — a JPL engineer who was a familiar face during the entry, descent and landing (EDL) phase of the Mars Curiosity rover’s triumphant August 2012 landing — is refreshingly candid about U.S. space policy in the new book “The Right Kind of Crazy: A True Story of Teamwork, Leadership, and High-Stakes Innovation.”

“One of the problems with space exploration is that we never have enough iterations to allow us to fully learn from our mistakes,” writes Steltzner, officially, the phase lead and development manager for the Mars Science Laboratory (Curiosity).

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“[Dave Valeza] captures the wonder artists worldwide have experienced with the rejuvination of the space industry of the past few years. From finding water on Mars to landing reusable rockets (plural!), 2015 has been a great year for space, and artists are loving it.”

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A U.S. science satellite slated to launch to Mars in March has been grounded due to a leak in a key research instrument, NASA said on Tuesday, creating uncertainty about the future of a widely anticipated effort to study the interior of the planet.

The spacecraft, known as InSight, was designed to help scientists learn more about the formation of rocky planets, including Earth.

The cancellation raises questions about the future of the research effort, as it will be another two years before Earth and Mars are favourably aligned for a launch. NASA has not said if it will have funding for the program, which was capped at $425 million US.

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​Researchers at the UCLA Henry Samueli School of Engineering and Applied Science have identified a new way to make a semiconductor laser that operates at terahertz frequencies. The breakthrough could lead to development of a new class of high-quality, powerful lasers for use in space exploration, military and law enforcement efforts and other applications.

The terahertz range of frequencies occupies the space on the electromagnetic spectrum between microwave and infrared. Terahertz waves can be used to analyze plastics, clothing, semiconductors and works of art without damaging the materials being examined; for chemical sensing and identification; and to investigate the formation of stars and composition of planetary atmospheres.

Researchers led by Benjamin Williams, a UCLA associate professor of electrical engineering, have created the first vertical-external-cavity surface-emitting laser, or VECSEL, that operates in the terahertz range. VECSELs that use visible light have been used extensively to generate high-powered beams, but the technique has not previously been adapted for terahertz frequencies.

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