Tag: spaceflight

SpaceX aims for November launch

11:44 am

The competition heats up: Despite the admitted difficulty of its investigation into its September 1 Falcon 9 launchpad explosion, SpaceX today said that they are aiming to resume launches as soon as November.

“We’re anticipating getting back to flight — being down for about three months — and getting back to flight in the November time frame,” Chief Operating Officer Gwynne Shotwell said Tuesday at an event in Paris. “We’ll obviously take another look at the rocket, focus on the ground systems.”

They have not said yet what payload they will launch, though it is clear that first launch will not be the Falcon Heavy demo launch, which has now been rescheduled for the 1st quarter fo 2017.

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A Mars Rover Update

12:36 pm

I have decided to continue my Mars rover updates, and make them a regular mid-week feature here on Behind the Black. This is the first.

Curiosity

For the overall context of Curiosity’s travels, see this post, Pinpointing Curiosity’s location in Gale Crater.

Since my last updates here and here, Curiosity has moved south through the gap between buttes to exit the Murray Butte area. The initial slopes of Mount Sharp lie ahead, an open road with no apparent rough terrain to slow travel.

Doing science however does slow travel, and for good reason. Once through the gap the science team decided to swung the rover west and up against the base of the gap’s western butte, rather than immediately head south to climb the mountain. The Mars Reconnaissance Orbiter image below, cropped and reduced, illustrates this path.
» Read more

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Some uncomfortable but valid thoughts about SpaceX

9:23 am

In the heat of competition: Doug Messier has written an excellent essay today raising some serious questions about SpaceX and its methods of operation.

The issues he raises go the heart of the company’s future. Moreover, he notes the unusual nature of the September 1 launchpad explosion that, unless explained, threatens the company business model.

The rarity of a satellite launch vehicle exploding during fueling had people racking their brains and scouring the Internet to find out the last time something like this happened. At least in the United States, that turned out to be more than 50 years ago when rocketry was in its infancy and accidents were much more frequent.

The lack of any modern precedents and the speed of the accident — Musk tweeted that engineers were reviewing around 3,000 channels of telemetry and video data that cover only 35-55 milliseconds — are making the investigation challenging. Musk has said it is the most difficult of the six failure investigations the company has conducted since it was founded in 2002.

Messier also takes a close look at SpaceX’s overall approach to innovation and development, and notes its unusual and somewhat risky nature.

Read it all. It provides valuable information for anyone who wants to understand honestly the state of the American launch industry.

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Blue Origin engine test might delay ULA decision on Vulcan engine

8:40 pm

ULA will delay its final decision on the engine it will use for its new Vulcan rocket until Blue Origin successfully completes a scheduled static fire engine test, originally schedule for late this year but possibly delayed until 2017.

“It’s really tied not so much to the calendar but to a technical event,” [Tory Bruno, CEO of ULA,] said of the schedule for an engine decision. “We want to have a full-scale static firing of the BE-4, so that we understand that it’s going to hit its performance and it’s going to be stable…. That may occur by the end of the year, but I could see it moving into the spring a little bit, to make sure we have enough test data and we feel confident about where we’re at,” he added.

He emphasized that the BE-4 remained the “primary path” to be used on the first stage of the Vulcan, ahead of the AR1 engine under development by Aerojet Rocketdyne. “They’re out in front,” Bruno said of the BE-4.

This engine test is not only critical for ULA, but its success will help firm up Blue Origin’s developmental schedule for its just announced New Glenn rocket.

Bruno’s comments at the link also suggest that ULA, like Arianespace, is pushing to grab some of the customers of SpaceX and Russia, both of whom are now experiencing launch delays.

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Russians consider building another new rocket

9:30 am

The competition heats up? The Russian government is considering building another new rocket that would be based more on Proton than Angara and could function eventually as the foundation for a heavy-lift rocket.

At the heart of the new design was the idea to enlarge the diameter of the Zenit rocket from 3.8 to 4.1 meters, so it could match the “caliber” of the Proton rocket. As a result, the Proton’s production machinery could be re-used with relatively few upgrades to manufacture the new-generation launcher, after its predecessor’s planned retirement in mid-2020s. Unlike Proton, all stages on Sunkar would burn non-toxic kerosene and liquid oxygen, as it had long been insisted upon by the Kazakh government. The Sunkar could utilize the existing launch and processing infrastructure for the Zenit rocket in Baikonur, which could be funded by Kazakhstan.

…Ironically, the proposal to develop yet another type of space launcher essentially reverses the previous strategy at GKNPTs Khrunichev of relying on a modular architecture of the Angara family to cover the entire spectrum of space payloads. However, unlike Angara’s standard booster, URM-1, the first stage of the Sunkar rocket will be large enough to serve as a building block for a future super-heavy rocket, reaching payloads of at least 80 tons, so it could serve as the main vehicle for the deep-space exploration program. Therefore, the Sunkar proposal can be considered as the first step in building a more powerful family of space rockets in Russia.

Run as a single government entity, it appears to me that the Russian aerospace industry is struggling with its decision-making process. Without some internal profit-oriented competition, they have no method for focusing their efforts on any design. Rather than have multiple independent companies competing for profit with their own individual designs, Roscosmos’s management can only make its decisions after much office politics, the logic of which often has nothing to do with the best or most efficient concept. Their one saving grace is that, rather than competing with themselves to thus encourage fast and efficient development, they will be competing with other countries — especially the American private sector — and that will eventually give them the impetus to build something.

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Blue Origin reveals its orbital rocket

9:15 am

The competition heats up: Blue Origin today unveiled the orbital rocket it plans to launch before 2020, dubbed New Glenn.

Named in honor of John Glenn, the first American to orbit Earth, New Glenn is based around two variants – a two stage and a three stage launch vehicle – and a reusable booster stage. No information has been released as to where the booster stage will land, although it is believed Blue Origin is evaluating the option of an “ocean-going platform,” per planning documentation associated with the launch site. “Building, flying, landing, and re-flying New Shepard has taught us so much about how to design for practical, operable reusability. And New Glenn incorporates all of those learnings,” Mr. Bezos added.

Mr. Bezos added that the two-stage New Glenn is 270 feet tall, and its second stage is powered by a single vacuum-optimized BE-4 engine (the BE-4U). The 3-stage New Glenn is 313 feet tall. A single vacuum-optimized BE-3 engine, burning liquid hydrogen and liquid oxygen, powers its third stage. The booster and the second stage are identical in both variants. The three-stage variant – with its high specific impulse hydrogen upper stage – is capable of flying demanding beyond-LEO missions.

The rocket will be quite large and comparable more to SpaceX’s Falcon Heavy than its Falcon 9, indicating that the competition is not only forcing companies to lower their prices, it is forcing new designs to be larger and have more capacity.

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Do you have video of the Falcon 9 explosion? SpaceX needs it!

2:40 pm

In a series of tweets today Elon Musk put out a call for any videos anyone might have of last week’s Falcon 9 launchpad explosion.

“Still working on the Falcon fireball investigation. Turning out to be the most difficult and complex failure we have ever had in 14 years,” Musk wrote. “Important to note that this happened during a routine filling operation. Engines were not on, and there was no apparent heat source. Particularly trying to understand the quieter bang sound a few seconds before the fireball goes off. May come from rocket or something else,” he said.

Musk also answered questions and responded to comments from the public. When Twitter user @ashwin7002 tweeted at Musk that “there are some videos on YouTube claiming something hit the rocket. Any reality there?” Musk replied, “We have not ruled that out.”

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The flowing formations of Lethe Vallis

9:36 am

Cool image time! The Mars Reconnaissance Orbiter science team yesterday released several new images. Below is just one, cropped and reduced in resolution to post here. It shows a large flow channel called Lethe Vallis, formed first by lava, then hit by an impact which created a walled crater in its middle. Flood waters then followed, creating the tear-shaped dune surrounding the crater. In addition, erosion exposed the dark lava basalt below the surface on the edge of that tear-shaped dune. Within the crater itself can be seen ripple dunes formed by wind. As the scientists note,

This single image thus contains features formed by periglacial, volcanic, fluvial, impact, aeolian and mass wasting processes, all in one place.

Be sure to check out the full image.

Lethe Vallis

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Rosetta’s final descent to Comet 67P/C-G

9:07 am

The Rosetta science team today posted two stories, describing details about the planned final descent of the spacecraft to the surface of Comet 67P/C-G on September 30, ending the mission.

The spacecraft will land in a region dubbed Ma’at that contains several active pits more than 300 feet across and 150 feet deep. This is also where several of the comets dust jets originate.

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Update on the Falcon 9 launchpad explosion investigation

9:42 pm

The Wall Street Journal has an interesting article today describing the investigation into last week’s Falcon 9 launchpad explosion, noting especially how — despite participation by the FAA, NASA, and the Air Force — SpaceX will be entirely in charge of the investigation, in accordance with present law.

The article is clearly lobbying for a change, whereby the government would have more power in these investigations. I personally think a change would be a mistake, that the law as it is now is how it should be. It was their rocket that exploded. Their business model depends on their rockets not exploding. Thus, they have the greatest self-interest in fixing the problem. The other outside players might be helpful, but their presence can only in the long run make things more difficult and slow things down, without making anything better.

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Arianespace offers to pick up SpaceX business

9:35 pm

The competition heats up: In an effort to gain more business, Arianespace is offering to add an additional launch to its 2017 schedule for any satellite companies whose payload launch is being delayed by both SpaceX’s Falcon 9 launchpad explosion as well as a delay in Russian Proton launches due to its own technical issues.

In his remarks it seemed to me that the CEO of Arianespace was almost gloating.

In a Sept. 7 interview with France Info radio, Israel reiterated his confidence in what he portrayed as Arianespace’s more plodding, deliberative — and higher-cost — approach to launches when compared to SpaceX.

Arianespace does not want a reusable rocket for the moment, he said, because it’s not certain that reusability can reduce costs and maintain reliability. The Ariane 6 rocket, to operate starting in 2020, will not be reusable. The company also is wary of the Silicon Valley ethos that champions constant iteration, which he said has been a feature of Hawthorne, California-based SpaceX as well. “We think that the more a launch resembles the preceding launch, the better we are for our customers because we remain in the ‘explored domain’ where everything is understood,” Israel said.

In the short run he and Arianespace might benefit by this situation, but in the long run they will face a shrinking market share if they cannot lower the price of their rockets.

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Blue Origin to do New Shepard launch abort test

9:27 pm

The competition heats up: For the next test flight of New Shepard, tentatively scheduled for early October, Blue Origin plans to test the capsule’s launch abort system, separating the capsule prematurely from its propulsion module during launch.

“We’ll be doing our in-flight escape test with the same reusable New Shepard booster that we’ve already flown four times,” Bezos wrote. “About 45 seconds after liftoff at about 16,000 feet, we’ll intentionally command escape. Redundant separation systems will sever the crew capsule from the booster at the same time we ignite the escape motor. The escape motor will vector thrust to steer the capsule to the side, out of the booster’s path. The high acceleration portion of the escape lasts less than two seconds, but by then the capsule will be hundreds of feet away and diverging quickly. It will traverse twice through transonic velocities—the most difficult control region—during the acceleration burn and subsequent deceleration. The capsule will then coast, stabilized by reaction control thrusters, until it starts descending.”

If all goes well, the capsule will make a normal descent under three drogue parachutes, and then its main parachutes, to the ground. And the booster? It may not fare so well. It was not designed to survive an in-flight escape, Bezos noted, as it will be slammed with 70,000 pounds of off-axis force and hot exhaust. At Max-Q it is not clear whether the propulsion module will survive—in some Monte Carlo simulations it does, but in others it does not.

I suspect they already have at least one new propulsion module ready to go, and plan to use it with the reused capsule in future tests.

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First test captive carry flight for Unity

9:21 pm

The competition heats up: Virgin Galactic today completed its first test flight of its new SpaceShipTwo, Unity, flying it mated to WhiteKnightTwo for almost four hours.

Congratulations to Virgin Galactic! Still, it remains to be seen whether they can get this ship tested and capable of commercial flights fast enough to beat their competition, competition that did not exist when they started their business more than a decade ago.

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Blue Origin to use two launchpads at Cape Canaveral

10:10 am

The competition heats up: Even though it is years away from flying its first orbital rocket, Blue Origin has expanded its plans at Cape Canaveral and now plans to remodel and use two different launchpads there for orbital flights.

The Kent, Wash.-based company filed a permit Sept. 6 to build and operate two orbital launch sites at Cape Canaveral Air Force Station, taking up launch complexes 11 and 36. The company originally announced its plans to blast off its rockets at launch complex 36 last year at the same time revealing its decision to build a rocket manufacturing facility near Space Florida’s Exploration Park in Merritt Island. Taking up launch complex 11 (LC-11) is a new development.

This means that when the company starts testing its orbital rocket it will likely be doing it in public, from the Cape, rather than in the secretive manner in which it developed its suborbital New Shepard spacecraft out in Texas.

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India’s GSLV rocket successfully launches again

10:03 am

The competition heats up: India’s Geosynchronous Satellite Launch Vehicle (GSLV) successfully placed a commercial communications satellite in orbit today.

This is the third successful GSLV launch in a row, indicating that India’s space agency ISRO has finally worked out the kinks of their home-built upper stage and are ready to begin regular and more frequent commercial launches, in direct competition with the world’s big players in the launch industry.

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The technology of Star Trek

9:55 am

On this, the fiftieth anniversary of the first airing of the first Star Trek episode, here is a fascinating look at the fictional technology of the series.

I remember that Thursday evening fifty years ago very well. As a teenager I had been suffering for years watching very bad and stupid television science fiction, like Lost in Space, written as if its audiences were five year old children and thus insulting them. Still, as an avid reader of science fiction that knew the genre was sophisticated and intelligent, I held onto the hope that some new science fiction show might finally do something akin to this.

Star Trek did this and more. That first episode had all the best elements of good drama and great science fiction: a mystery, an alien, a tragic figure, and an ancient lost civilization. From that moment until the series was cancelled, I would be glued to my television set when it aired.

You can watch that first episode if you wish, though with commercials. Click on the first link above to do so. In watching it recently when Diane and I decided to rent the original series from Netflix and watch them again, I was surprised how well this episode, as well as the entire first series, has stood up over time. It is not dated. Its drama remains as good. And you know, the writing is sometimes quite stellar, to coin a phrase.

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Rosetta finds carbon molecules in comet dust

9:32 am

The Rosetta science team has announced that they have detected very complex carbon molecules in solid dust particles that were released from Comet 67P/C-G.

“Our analysis reveals carbon in a far more complex form than expected,” remarked Hervé Cottin, one of the authors of the paper reporting the result that is published in Nature today. “It is so complex, we can’t give it a proper formula or a name!” The organic signatures of seven particles are presented in the paper, which the COSIMA team say are representative of the two hundred plus grains analysed so far.

The carbon is found to be mixed with other previously reported elements such as sodium, magnesium, aluminium, silicon, calcium and iron. It is bound in very large macromolecular compounds similar to the insoluble organic matter found in carbonaceous chondrite meteorites that have fallen to Earth, but with a major difference: there is much more hydrogen found in the comet’s samples than in meteorites.

But as this kind of meteorite is associated with reasonably well-processed parent bodies such as asteroids, it is reasonable to assume that they lost their hydrogen due to heating. By contrast, comets must have avoided such significant heating to retain their hydrogen, and therefore must contain more primitive material.

Because of the use of the term organics here for these carbon-based molecules, expect a lot of news reports to misreport this discovery and incorrectly announce with great excitement that Rosetta has “discovered life” on Comet 67P/C-G! Among scientists, any carbon molecule is referred to as organic, even if it is entirely inanimate. In this case these molecules are not the result of life, but of carbon’s atomic structure, allowing it to form an infinite variety of molecules with almost any other element.

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Orion faces more budget and schedule delays

9:18 am

A new inspector general report of NASA’s Orion has found that the program still faces significant budget and technical problems in meeting the planned August 2021 launch date for its first manned mission.

The report makes it clear that this launch will almost certainly be delayed until 2023, meaning that from the date President George Bush proposed Orion in 2004, it will have taken NASA a full two decades to launch the first manned Orion capsule.

Let me repeat that: Two decades to build and launch a single manned mission. Does anyone see something wrong here?

As for what will happen after that first flight, the report itself [pdf] makes it pretty clear that not much is likely. From page 11:

For Orion missions after 2023, NASA has adopted an incremental development approach. According to the Program Plan, the approach is cost-driven and will provide a core vehicle the Agency can upgrade to provide additional capabilities for missions beyond cis-lunar space. Each incremental upgrade will build on flight experience to ensure the vehicle’s design is based on viable technology and capabilities. Consistent with this incremental approach, NASA has not committed to specific missions after 2023 and therefore has not developed detailed plans, requirements, or costs for such missions. According to NASA officials, the Agency will instead focus on building capabilities through defined roadmaps that identify technology development paths and capability requirements for deep space exploration missions. Officials explained the Agency will fund basic research, pursue development of the technologies that appear most viable, and build capabilities based on available funding. Missions will be selected based on the progress and maturity of the developed technology.

A translation of this gobbly-gook into plain English can be summed up as follows: Congress has given us no money for future missions, so we can’t plan anything.

Considering the cost and the ungodly amount of time it took NASA to get to this one flight, and considering how badly this record compares with the numerous flights that private commercial space will achieve prior to this single flight, don’t expect Congress to fork up more money after 2023. SLS and Orion are going to die. Unfortunately, their slow death will have cost the American taxpayer billions of wasted dollars that NASA could have been better spent on other things.

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Mars rover update

9:05 am

It is time for an update on the journeys of Curiosity and Opportunity on Mars!

First, Curiosity. Though the science team has not yet updated the rover’s Mars Reconnaissance Orbiter traverse map showing its travels, it appears from Curiosity’s most recent navigation camera images that the rover has moved passed the first butte that had been ahead and directly to the south in the traverse map shown in the last image of my post here. The image below the fold, cropped and reduced to show here, looks ahead to the second butte and the gap to the south. Beyond Mt Sharp can be seen rising up on the right, with the upcoming ground open and relatively smooth. The only issue will be the steepness of that terrain. Based on my previous overall look at the rover’s journey, I suspect they will contour to the left.
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