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Category: space travel – Page 552

Mars Curiosity Engineer Rips NASA In New Book

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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NASA’s next Mars mission has been called off

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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UCLA researchers develop ‘metasurface’ laser for terahertz range

​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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SpaceX Finally Manages to Land an Orbital Rocket Back on Earth

Right on schedule, SpaceX’s Falcon 9 booster made a beautiful soft landing at Cape Canaveral Air Force Station moments ago. It’s a huge moment in the history of spaceflight, marking the first time a rocket has ascended into orbit and landed back on Earth.

The prospects for the reusable rocket system SpaceX has been chasing for over a year are that much better.

At 8:29 pm ET, SpaceX launched its upgraded, Falcon 9 rocket carrying a payload of 11 Orbcomm communication satellites into low Earth orbit from Space Launch Pad 40 at Cape Canaveral Air Force Station. Minutes later, the second stage separated from the first and continued to propel its payload into higher orbit.

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