Category Archives: Space

Business, Space

The SS2 Drop Test

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As Clark Lindsey reports, there was a drop test of SpaceShipTwo, that had some, but apparently not all of the propulsion system installed. I wonder if it was carrying fuel? One of the issues I discuss in my book is its ability to abort with a failed ignition, because while it can dump the oxidizer, it’s not possible to get rid of the rubber slug. Steve Isakowitz told me that it is designed to land with a fuel load, from a CG/weight standpoint, so it would be interesting to see if they demonstrated that ability.

Media Criticism, Political Commentary, Space, Technology and Society

The “Claim The Moon” White House Petition

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“Why I did it.”

It’s a dumb reason. He provides reasons why someone might want to claim the moon, but none for why anyone else should pay any heed whatsoever to such a claim.

Even ignoring the fact that it would be a blatant violation of the Outer Space Treaty, there is no traditional or even historical basis on which the nation could claim the entire body, nor is it necessary. Even if we could get an international consensus that off-planet property rights, or even sovereignty claims, are a good thing, we have to establish some criteria for making such claims beyond the fact that we stuck a flag on it four decades ago. Traditional claims, at least in modern times, involve actually occupying and improving the claim. For the U.S. to claim the entire moon without having even bothered to do anything significant on any part of it for almost half a century would rightly be viewed as almost as ludicrous as the Eros claim a few years back. It’s a planet too far.

Science And Society, Space, Space Science, Technology and Society

No Gravity Required

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This is good news for space settlement:

The scientists ran their experiment on Arabidopsis plants—a go-to species for plant biologists. The control group was germinated and grown at the Kennedy Space Center (A), while the comparative group was housed on the International Space Station (B). For 15 days, researchers took pictures of the plants at six-hour intervals and compared them. Their results surprised even them: the plants in space exhibited the same growth patterns as those on Earth.

The researchers were looking for two specific patterns of root growth: waving and skewing. With waving, the root tips grow back and forth, much like waves. Skewing occurs when a plant’s roots grow at an angle, rather than straight down. Scientists don’t know exactly why these root behaviors occur, but gravity was thought to be the driving force for both.

So much for that theory. This means the potential for fresh food at ISS, if you’re a vegetarian (or even if not). They should be learning how to do weightless hydroponics. Of course, we still don’t know if animals, and particularly humans, can gestate, or how, and that’s true of partial gravities as well. And we’re not likely to until SSI gets funding for its variable-gravity lab.