Tag: spaceflight

The launch today of India’s homemade Geosynchronous Satellite Launch Vehicle (GSLV) was scrubbed when a fuel leak was spotted at T-74 minutes.

2:16 pm

The launch today of India’s homemade Geosynchronous Satellite Launch Vehicle (GSLV) was scrubbed when a fuel leak was spotted at T-74 minutes.

India has had trouble getting this powerful rocket off the ground successfully, with four previous launch failures. If they succeed this time, however, they will then have the ability to build their own rocket, capable of putting commercial payloads into geosynchronous orbit.

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Formation flying in space, without propellants.

8:52 am

Formation flying in space, without propellants.

Electromagnetic formation flight (EMFF) gets around this propellant problem by turning the satellites in a formation into electromagnets. By using a combination of magnets and reaction wheels, spacecraft in formation can move and change their attitude and even spin without propellant. Satellites can change their polarity to attract or repel one another, turn, or shift their relative positions in any manner that doesn’t require changing the center of gravity for the entire formation.

A prototype is going to be tested inside ISS in the near future.

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The Russians have begun a six-hour spacewalk today on ISS to prepare the station for the arrival of a new Russian module.

9:30 am

The Russians have begun a six-hour spacewalk today on ISS to prepare the station for the arrival of a new Russian module.

The article also outlines the continuing investigation into the American spacesuit problem from the last American spacewalk, where an astronaut’s suit began to fill with water from an unknown source. It appears they have pinpointed the most likely cause of the leak, but appear to be having problems recreating the failure.

Update: The Russian spacewalk is over, all tasks completed.

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The engineering tests to try to save Kepler have found that the mission is essentially over.

11:16 am

The engineering tests to try to save Kepler have found that the mission is essentially over.

A headline at this New York Times article, “NASA’s Kepler Mended, but May Never Fully Recover” is wrong, as the telescope has not been “mended.” They have found they might be able to do some limited science, at the most. NASA is going to review this possibility, weighing the cost versus the benefit, and decide in the fall.

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Russia has concluded its investigation into last month’s Proton launch failure and now says its next launch will be on September 15.

9:16 am

Russia has concluded its investigation into last month’s Proton launch failure and now says its next launch will be on September 15.

While the investigation pinpointed the problem — the installation of sensors upside down — none of the news reports about this investigation have mentioned what any corrective actions the Russians are taking. Meanwhile, at least one unnamed Russian engineer is questioning the schedule and the thoroughness of the investigation.

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Engineers have identified twelve asteroids that could be captured with today’s technology.

12:07 pm

Engineers have identified twelve asteroids that could be captured with today’s technology.

Their number one most easily moved space rock is named 2006 RH120. A single rocket burn in 2021 would be enough to place this roughly 4-meter-wide asteroid into orbit around a Lagrange point by 2026. NASA could then launch people to study this object (which would barely be bigger than the astronauts themselves) and learn about its history.

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Pigs in space

10:11 am

Today I have an op-ed in the Wall Street Journal, entitled “No liftoff for these space flights of fancy.” It is essentially a more detailed reworking of my rant on the John Batchelor Show on July 30.

My point is that the federal space program mandated by Congress, the Space Launch System (SLS), is never going to go anywhere, and is nothing but pork that should be cut as fast as possible. (See my essay from November 2011 on how NASA and the federal government can better use this money to get more accomplished in space, for less.)

The comments to the article have generally been positive and in agreement. Those who disagree mostly question the $14 billion cost per launch that I claim SLS will cost. That number comes from John Strickland’s very detailed analysis of what it will cost to build, complete, and operate SLS. However, it doesn’t require much thoughtful analysis to realize that this number is not unreasonable.
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ATK has joined Stratolaunch, winning a contract to provide solid rocket motors for company’s proposed second stage air-launched rocket.

9:13 am

The competition heats up: ATK has joined Stratolaunch, winning a contract to provide solid rocket motors for company’s proposed second stage air-launched rocket.

Stratolaunch’s first stage will take off from a runway, and will be the largest airplane ever built. The second stage, which Orbital Sciences is building and which ATK is now be a partner, will be released from this airplane and then ignite.

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Virgin Galactic did another glide test of SpaceShipTwo today.

6:19 pm

Virgin Galactic did another glide test of SpaceShipTwo today.

I wonder, however, why there have been no powered flight tests so far this summer. After their first powered flight in May, it was expected they would begin a series of such flights, leading up to the first passenger flights at the end of the year. Instead, nothing.

This lack of flights feeds the long standing rumors that there are problems with SpaceShipTwo’s engine.

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An update on Dawn in its journey from the asteroids Vesta to Ceres.

9:30 am

An update on Dawn in its journey from the asteroids Vesta to Ceres. Bottom line:

Dawn is 18 million kilometers (11 million miles) from Vesta and 50 million kilometers (31 million miles) from Ceres. It is also 3.47 AU (519 million kilometers or 322 million miles) from Earth, or 1,310 times as far as the moon and 3.42 times as far as the sun today. Radio signals, traveling at the universal limit of the speed of light, take 58 minutes to make the round trip.

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Russia has announced that they will resume Proton rocket launches in September.

8:53 am

Russia has announced that they will resume Proton rocket launches in September.

Though they have pinpointed the specific cause of the most recent launch failure, they have not yet announced any remedial actions. Note also the expected number of launches for the rest of the year, 4 to 5, is down from earlier expectations.

Meanwhile, in Kazakhstan, an official in that country’s space program has been arrested for taking bribes.

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SpaceX has confirmed that it plans to begin vertical take-off and landing tests of a full scale Falcon 9 first stage.

6:02 pm

The competition heats up: SpaceX has confirmed that it plans to begin vertical take-off and landing tests of a full scale Falcon 9 first stage.

The tests would be in New Mexico’s spaceport, and are essentially a scaled up version of the Grasshopper tests the company has been doing in Texas. It appears they are going to do these ground-up tests in conjunction with attempts on each future Falcon 9 launch to land the first stage.

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The state of SLS construction.

10:40 pm

The state of SLS construction.

The article is mostly focused on the engineering challenges of building a new rocket out of old pieces of the space shuttle. Kind of reminds me of Frankenstein. Nonetheless, I do get the impression for the first time that this heavy lift rocket will be built, and will fly at least once.

After that, however, I expect it to die from lack of funds. In fact, its history will probably parallel that of the Soviet Union’s Energia rocket, which flew twice, once to launch their shuttle copycat Buran and once to lift a failed payload whose purpose has never been clearly revealed. Soon thereafter came bankruptcy and the end of the Soviet Union, which couldn’t afford such a monstrosity. SLS will likely see a similar fate.

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SpaceX has signed a contract with MDA to launch all three of Canada’s next generation Radarsat satellites.

9:32 am

The competition heats up: SpaceX has signed a contract with MDA to launch all three of Canada’s next generation Radarsat satellites.

MDA’s willingness to go with SpaceX prior to the September 5 launch of its Cassiope satellite on the Falcon 9 illustrates again the confidence they have in SpaceX. At the same time, this contract is for launches expected to occur around 2018, which is a long way away. Much can happen till then, including the possibility that SpaceX will go bust.

In other words, right now it is the successful launch of Falcon 9 that is of significance, not these new contracts. Only if those launches succeed will these contracts then become really significant.

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On Friday an astronaut on ISS controlled and steered a rover on Earth.

8:33 am

On Friday an astronaut on ISS controlled and steered a rover on Earth.

While zipping around Earth several hundred miles above the planet’s surface, European Space Agency astronaut Luca Parmitano drove a 220-pound (100 kilograms) rover across a moon-mimicking landscape here at NASA’s Ames Research Center, even ordering the robot to deploy a simulated film-based radio telescope antenna.

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