Year: 2014

A new analysis of Apollo lunar rocks provides strong new evidence for the theory that the Moon was formed when the Earth was hit by a Mars’ sized planet.

9:14 am

A new analysis of Apollo lunar rocks provides strong new evidence for the theory that the Moon was formed when the Earth was hit by a Mars’ sized planet.

The abstract from this just released science paper summarizes the scientific problem.

Earth formed in a series of giant impacts, and the last one made the Moon. This idea, an edifice of post-Apollo science, can explain the Moon’s globally melted silicate composition, its lack of water and iron, and its anomalously large mass and angular momentum. But the theory is seriously called to question by increasingly detailed geochemical analysis of lunar rocks. Lunar samples should be easily distinguishable from Earth, because the Moon derives mostly from the impacting planet, in standard models of the theory. But lunar rocks are the same as Earth in O, Ti, Cr, W, K, and other species, to measurement precision. Some regard this as a repudiation of the theory; others say it wants a reformation. Ideas put forward to salvage or revise it are evaluated, alongside their relationships to past models and their implications for planet formation and Earth.

The new analysis has found that lunar rocks do differ from Earth in certain ways. Not surprisingly, however, the results have uncertainties.

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Mojave Spaceport temporarily evacuated due to a small scrap metal fire.

8:58 am

Mojave Spaceport temporarily evacuated due to a small scrap metal fire.

The official statement can be read here. As noted by Doug Messier,

There’s a question of why scrap material (or any other flammable material) was anywhere near a tank full of nitrous oxide. In consulting with one expert who uses nitrous oxide, I was told that a blast could have possibly damaged everything within 1,000 feet. That’s basically two complete football fields with end zones plus another 93 yards. There are a lot of irreplaceable people and technologies within 1,000 feet of where that fire took place.

Then again, a fire can occur almost anywhere, and it is often impossible to keep it away from flammable materials.

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The rupture of a drum at a nuclear waste site in New Mexico has shut down a neutrino experiment.

9:00 am

The rupture of a drum at a nuclear waste site in New Mexico has shut down a neutrino experiment.

This article, from Nature, focuses on the harm done to the science experiment, which is considerable and very unfortunate. However, scroll to the end of the article to learn a little about the drum rupture, which has serious implications for the storage of nuclear waste anywhere.

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Richard Shelby’s poison pill in the Senate NASA budget bill that will double the cost of manned commercial space.

8:46 am

Senator Richard Shelby’s poison pill in the Senate NASA budget bill that will double the cost of manned commercial space.

Essentially Shelby wants to require the commercial companies to follow the older paperwork requirements used by NASA in the past. Presently, the contract arrangements NASA has used for these new companies have been efficient and relatively paperwork free, allowing them to build their cargo freighters (Dragon and Cygnus) and their manned spacecraft (Dragon V2, CST-100, and Dream Chaser) for relatively little.

The older contract rules are what NASA has used for Constellation and SLS as well as all past attempts to replace the shuttle. In every case, the costs were so high the replacement was never finished. In the case of SLS, the costs will be so high it will never accomplish anything.

Why has Shelby (R-Alabama) inserted this language? He wants pork, and SLS is the way to get it. Rather than cut the cost of SLS to make it more competitive (and which will reduce the pork in his state) Shelby instead wants to make the new commercial companies more costly, thus making SLS appear more competitive. It will still cost too much and will not accomplish anything, but this way he will be able to better argue for it in congressional negotiations.

Shelby illustrates clearly that the desire to waste the taxpayers’ money is not confined to the spendthrifts in the Democratic Party. Republicans can do it to!

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Want to own your own Apollo capsule from the 1960s?

8:34 am

Want to own your own Apollo capsule from the 1960s?

Apparently nobody wants to buy a spaceship, at least not for $200,000. St. Louis-based auction company Regency-Superior reported no bids on Wednesday for former Lt. Gov. Lonnie Hammargren’s 1960s Apollo Command Module Block 1 mock-up, which was a fixture in the retired neurosurgeon’s eclectic collection since he acquired it in the mid-1970s.

The capsule remains available still at the minimum price if you go to the auction house’s website.

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