Jun. 29th, 2007

groovychk: (science)

Originally published at Twixel.net. You can comment here or there.

Nuclear rockets could cut cost of Moon base - space - 28 June 2007 - New Scientist Space
Howe envisions using a nuclear engine similar to one designed and tested in the 1960s called Nuclear Engine for Rocket Vehicle Application (NERVA). In the NASA-funded NERVA design, hydrogen gas is heated by nuclear reactions in a uranium reactor and expelled to produce thrust.

I am ALL for this. We are long past due on using nuclear rocket engines.

The higher efficiency of such an engine means almost 29 tonnes of cargo could be delivered to the Moon in a single Ares V launch, compared to 21 tonnes with the non-nuclear version. This would allow a 250-tonne lunar base to be constructed with only nine rather than 12 Ares V launches, Howe says.

Originally published at Twixel.net. You can comment here or there.

First artificial life ‘within months’
Scientists could create the first new form of artificial life within months after a landmark breakthrough in which they turned one bacterium into another.
In a development that has triggered unease and excitement in equal measure, scientists in the US took the whole genetic makeup - or genome - of a bacterial cell and transplanted it into a closely related species. This then began to grow and multiply in the lab, turning into the first species in the process. The team that carried out the first “species transplant” says it plans within months to do the same thing with a synthetic genome made from scratch in the laboratory. If that experiment worked, it would mark the creation of a synthetic lifeform.

Very radical work and very cool.

groovychk: (science)

Originally published at Twixel.net. You can comment here or there.

SPACE.com — Bigelow’s Second Orbital Module Launches Into Space
A privately-built space station prototype successfully launched into orbit Thursday from a Russian missile base, kicking off the second test flight for the U.S. firm Bigelow Aerospace.

Genesis 2, an inflatable module laden with cameras, personal items and a Space Bingo game, rocketed spaceward atop a Dnepr booster from a silo at Yasny Launch Base, an active Russian strategic missile base in the country’s Orenburg region. Liftoff occurred at 11:02 a.m. EDT (1502 GMT) though it was near evening at the Russian launch site.

“It was beautiful,” Bigelow Aerospace corporate counsel Mike Gold, who attended the launch, told SPACE.com immediately after the Dnepr blastoff. “Genesis 1 is about to have company.”

Genesis 2 is a near-twin of Bigelow Aerospace’s Genesis 1 module, which launched in July 2006 and remains operational today, but carries a series of enhancements and additional cargo, the Las Vegas, Nevada-based spaceflight firm has said. Both spacecraft are prototypes for future commercial orbital complexes that Bigelow Aerospace, and its founder and president Robert Bigelow, hope to offer for use by private firms and national space agencies.

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