Return of the droid

The unpiloted ISS Progress 45 supply vehicle departs from the International Space Station at 5:10 p.m. (EST) on Jan. 23, 2012. Filled with trash and discarded items, Progress 45 was later deorbited, subsequently burning up in Earth’s atmosphere. The departure of Progress 45 clears the way for the next unpiloted supply ship, Progress 46, which is set to launch at 6:06 p.m. (EST) on Jan. 25 (5:06 a.m. Baikonur time Jan. 26) from the Baikonur Cosmodrome in Kazakhstan bringing 2.9 tons of food, fuel and supplies for the residents of the space station. … (SpaceRef)


Whistelblower dies

His reckless bosses sent seven people into their deaths. His “friends” and “colleagues” blamed him for all what went wrong with them afterwards.

Six months before the space shuttle Challenger exploded over Florida on Jan. 28, 1986, Roger Boisjoly wrote a portentous memo. He warned that if the weather was too cold, seals connecting sections of the shuttle’s huge rocket boosters could fail.

“The result could be a catastrophe of the highest order, loss of human life,” he wrote.

The memo was meant to jolt Morton Thiokol, the company that made the boosters and employed Mr. Boisjoly. In July 1985, a task force had been formed, partly on Mr. Boisjoly’s recommendation, to examine the effect of cold on the boosters. The effort, however, had become mired in paperwork, procurement delays and a rush to launch the shuttle, according to later investigations.

Meanwhile, his apprehensions only grew. The night before the Challenger’s liftoff, the temperature dipped below freezing. Unusual for Florida, the cold was unprecedented for a shuttle launching, and it prompted Mr. Boisjoly and other engineers to plead that the flight be postponed. Their bosses, under pressure from NASA, rejected the advice.

The shuttle exploded 73 seconds after launching, killing its seven crew members, including Christa McAuliffe, a high school teacher from Concord, N.H.

Mr. Boisjoly’s memo was soon made public. He became widely known as a whistle-blower in a federal investigation of the disaster. And though he was hailed for his action by many, he was also made to suffer for it. … (New York Times)

Clean. Very clean.

Mars may have been arid for more than 600 million years, making it too hostile for any life to survive on the planet’s surface, according to researchers who have been carrying out the painstaking task of analysing individual particles of Martian soil. Dr Tom Pike, from Imperial College London, will discuss the team’s analysis at a European Space Agency (ESA) meeting on 7 February 2012. The researchers have spent three years analysing data on Martian soil that was collected during the 2008 NASA Phoenix mission to Mars. Phoenix touched down in the northern arctic region of the planet to search for signs that it was habitable and to analyse ice and soil on the surface.

The results of the soil analysis at the Phoenix site suggest the surface of Mars has been arid for hundreds of millions of years, despite the presence of ice and the fact that previous research has shown that Mars may have had a warmer and wetter period in its earlier history more than three billion years ago. The team also estimated that the soil on Mars had been exposed to liquid water for at most 5,000 years since its formation billions of years ago. They also found that Martian and Moon soil is being formed under the same extremely dry conditions. …(SpaceRef)

New superearth, new superchances

A potentially habitable alien planet — one that scientists say is the best candidate yet to harbor water, and possibly even life, on its surface — has been found around a nearby star.

The planet is located in the habitable zone of its host star, which is a narrow circumstellar region where temperatures are neither too hot nor too cold for liquid water to exist on the planet’s surface.

“It’s the Holy Grail of exoplanet research to find a planet around a star orbiting at the right distance so it’s not too close where it would lose all its water and boil away, and not too far where it would all freeze,” Steven Vogt, an astronomer at the University of California, Santa Cruz, told SPACE.com. “It’s right smack in the habitable zone — there’s no question or discussion about it. It’s not on the edge, it’s right in there.” … (SciAm)

IBEX vacuum cleaning

A particle-gobbling probe has snared some alien travelers: tiny particles from interstellar space that, after being born from the ashes of an exploding star, breached a protective bubble blown by the sun and sailed into the jaws of the awaiting spacecraft.

“These are some first observations of interstellar material, really alien matter,” Dave McComas, a principal investigator for NASA’s Interstellar Boundary Explorer spacecraft, or IBEX, said January 31 in a NASA press conference announcing the findings. “This alien interstellar material is really the stuff that stars and planets and people — all of us — are made of,” said McComas, of the Southwest Research Institute in San Antonio. …(ScienceNews)

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Crackpot CWRU

A “theory of everything” from a scientist at Case Western Reserve University got a lot of attention for positing that inanimate objects, from planets and water to strands of DNA, are alive. Not only is the assertion bunk, but the scientific and media phenomena surrounding the study reveals how sometimes crackpot ideas can get traction. … (SPACE.com)

 

Face Space Race

NASA unveiled its first online space trivia game today (Jan. 30), a Facebook app that allows multiple players to compete for cosmic bragging rights.

The free game, called “Space Race Blastoff,” is a mix of Space Camp and “Jeopardy!” that pits players against one another in a quiz on NASA and space exploration history. Players with enough correct answers can earn award badges emblazoned with NASA astronauts, spaceships or astronomical objects, NASA game designers said. …  (SPACE.com)