Author: Robert Zimmerman

Data from Mars Reconnaissance Orbiter now suggests that a lake in a Martian crater had filled from groundwater coming up from below.

9:43 am

Data from Mars Reconnaissance Orbiter now suggests that a lake in a Martian crater had filled from groundwater coming up from below.

This is an important discovery, as it demonstrates that an underground water table had existed on Mars, at least at this location. With such a water table, it is possible for all kinds of interesting biological things to have taken place, underground.

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Not all is golden in commercial space: The failure of the Oklahoma spaceport deal.

9:37 am

Not all is golden in commercial space: The failure of the Oklahoma spaceport deal.

It is important that we restrain our enthusiasm for private space and always look with skepticism at any new proposed private effort. It appears that this was something that Oklahoma officials failed to do when they first established their spaceport for Rocketplane, a company now bankrupt.

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Kepler shut down for ten days to save the mission.

9:27 am

Uh-oh: Kepler has been shut down for ten days to save the mission.

The spacecraft was launched with four so-called reaction wheels that spin to help keep the telescope pointing at its target fields of stars. One of these, reaction wheel No 2, failed in July 2012, leaving three to do the maneuvers, including a quarterly roll to a new orientation. Now reaction wheel No 4 has shown early indications that it might fail, prompting its NASA controllers to attempt some long-distance maintenance. They hope that by resting the wheels, their lubricant will spread to ease increased friction.

If this wheel fails permanently, the Kepler mission would be over, as it would be impossible to orient the spacecraft with enough precision with only two wheels.

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In rushing through a new gun law in New York making illegal high capacity magazines, the legislature failed to exempt the police.

9:38 am

Idiots: In rushing through a new gun law in New York making illegal high capacity magazines, the legislature failed to exempt the police.

On Tuesday, Governor Andrew Cuomo signed the sweeping gun measure, the nation’s toughest. It includes a ban on the possession of high-capacity magazines. Specifically, magazines with more than 7 rounds will be illegal under the new law. The problem as the statute is currently written does NOT exempt law enforcement officers. The NYPD, the State Police and virtually every law enforcement agency in the state carry 9-milli-meter guns, which have a 15-round capacity. Unless an exemption is added by the time the law takes effect in March, police would technically be in violation of the new gun measure.

If only more lawmakers had the brains of State Senator Greg Ball of New York, who voted against the law. His very cogent comments during the legislative session are embedded below. It is short, and worth watching.
» Read more

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The TSA is going to remove all of the airport backscatter body scanners made by one company.

9:28 am

Is this true? According to this report, the TSA is going to remove all of the airport backscatter body scanners made by one company.

One, I wonder at the reliability of this story, having seen it no where else. Two, I wonder if this involves the removal of all of the naked scanners, or just one company’s. It appears from the report that the TSA will be replacing some of these units, but it is unclear if they will be naked scanners.

Three, if true, this is good news. I sadly remain skeptical.

Update: Confirmation from the Associated Press.

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New images of a dry river on Mars.

10:27 am

New images of a dry river bed on Mars.

Reull Vallis, the river-like structure in these images, is believed to have formed when running water flowed in the distant martian past, cutting a steep-sided channel through the Promethei Terra Highlands before running on towards the floor of the vast Hellas basin. This sinuous structure, which stretches for almost [1000 miles] across the Martian landscape, is flanked by numerous tributaries, one of which can be clearly seen cutting in to the main valley towards the upper (north) side.

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