Tag: spaceflight

The Curiosity science team celebrates the completion of a full Martian year since the rover’s landing.

12:01 pm

The Curiosity science team celebrates the completion of a full Martian year since the rover’s landing.

This is mostly a press event aimed at convincing the world that the project is accomplishing its goals. Though they are justified in touting the many significant things about Mars and the past environment in Gale Crater that Curiosity has uncovered, we mustn’t forgot that the main goal was always to climb the slopes of Mt Sharp in order to study its geological layers and thus the long term geological history of Mars. The rover has not yet done this, and because of the greater-than-expected wheel damage the rover is experiencing, is at risk of not being able to get where it has to go.

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The history of Russia’s new Angara rocket.

9:42 am

The history and origin of Russia’s new Angara rocket.

A fascinating read, as it gives some of the office politics and back-fighting that surrounded the decision to pick the builder of this new rocket. For example, when the government picked the company Khrunichev to build the rocket,

[C]ritics charged that traditional Russian nepotism had played a role — at the time, a daughter and the son and law of the Russian president Boris Yeltsin worked for Khrunichev. As a consolation prize, RKK Energia was awarded the development of the second stage for the Angara rocket.

Later, in a move reminiscent to the space shuttle’s history (where the winning contractor eventually ended up using the basic design of their losing competitor), Khrunichev dumped the design they had used to win the contract and switched over to something almost identical to what Energia had proposed. And in the process, they cut Energia out of the deal entirely.

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Engineers have now developed techniques to a produce materials as light as aerogel but many times stronger.

9:28 am

Engineers have now developed techniques to a produce materials as light as aerogel but many times stronger.

Aerogels are incredibly light, so light that the record holder, aerographene, boasts a density of just 0.16 mg/cm3. Currently, aerogels are used for insulation, tennis racquets, as a means of controlling oil spills, and were used on the NASA Stardust mission to collect samples from a comet’s tail. Unfortunately, despite its seemingly ephemeral nature, its very much a solid and will shatter if pressed hard enough, so its use is limited.

The new materials developed by the MIT/LLNL team aren’t aerogels, but are metamaterials. That is, artificial materials with properties that aren’t found in nature. The idea is to structure it, so that it has the lightness of aerogel, but is much stronger. The strength of the new materials comes from their geometric structure, not their chemical composition.

The technique used to make these materials is a variation of 3D printing, but at molecular scales.

If this works, the weight of rockets and spaceships is going to drop significantly, making access to space far less expensive. It will also make it possible for a far less power rocket to put into orbit far bigger payloads.

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As China’s Yutu lunar rover barely continues to survive, unable to move, its scientists prepare to publish their results.

8:57 am

As China’s Yutu lunar rover barely continues to survive, unable to move, its scientists prepare to publish their results.

But other systems and scientific instruments — a panoramic camera, infrared and X-ray spectrometers and a ground-penetrating radar — are operating normally, says Zheng: “The rover can still carry out measurements from the fixed location and send scientific data to the ground station.” …

Yutu’s penetrator radar has detected several layers underneath its path, says Long Xiao, a planetary scientist at China University of Geosciences in Wuhan. Under the surface soil, known as regolith, it found a layer of debris from a crater-forming impact and two layers of lava flows, made of basalt.

Though the rover lost its ability to rove within days of landing on the Moon, the mission is certainly an overall success for China. When they send their next rover to the Moon this first experience will serve them very well.

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In a speech in Singapore, the head of Arianespace said that the company urgently needs to overhaul its Ariane 5 rocket in order to meet tough competition from SpaceX and Russia’s Proton rocket.

8:50 am

Recognizing the competition: In a speech in Singapore, the head of Arianespace said that the company urgently needs to overhaul its Ariane 5 rocket in order to meet tough competition from SpaceX and Russia’s Proton rocket.

“We have a newcomer in America with SpaceX. Yes, competition is increasing, but when competition is increasing, we need to be more and more agile,” said Israel. While recognising that Arianespace was the market leader, “we have to ask ourselves one question: what should we do to remain the leader? Europe is very serious about launchers, and Europe will not give up when it comes to launchers.”

For Arianespace this speech is a very good thing, as it demonstrates again that Israel — and the company — are aware of the competitive challenge put forth by SpaceX and are not making believe it doesn’t exist.

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The late arrival of Russia’s first private satellite

8:43 am

The competition heats up? The Dnepr rocket launch of 37 satellites yesterday also included the launch of the first private Russian satellite.

TabletSat-Aurura owned by the company SPUTNIX weighs 26.2 kg and is made to operate for one year. It is intended for remote Earth sensing in the interests of a private company. The satellite was made using Russian technologies and a minimum of foreign components. Its cost is about one million US dollars.

Igor Komarov, the head of the United Rocket and Space Corporation, said “the launch of Aurora, the first Russian private satellite, is a successful example of public-private partnership in the field of space exploration as private companies clearly cannot fulfill their strategic tasks without the state. ,,, I am confident that cooperation between the state and private aerospace agencies in designing and manufacturing high-tech craft will become an important stimulus for further development of Russian competitive technologies.”

SPUTNIX Director-General Andrei Potapov said his company’s plans included “creating a cluster of small spacecraft and craft for super high-definition aerial video surveying and imaging with a resolution of down to one meter per pixel”. [emphasis mine]

Why do I have doubts about this Russian achievement? The reasons are twofold.
» Read more

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Two low-cost, car battery-sized Canadian space telescopes were launched successfully in Russia today

10:14 am

Two low-cost, car battery-sized Canadian space telescopes were launched successfully in Russia today.

The important detail here is this quote:

“BRITE-Constellation will exploit and enhance recent Canadian advances in precise attitude control that have opened up for space science the domain of very low cost, miniature spacecraft, allowing a scientific return that otherwise would have had price tags 10 to 100 times higher,” [emphasis mine]

Most nanosats and cubesats have not had the kind of precise attitude control of larger satellites, which is one of their limitations. If the technology is now maturing so that these tiny satellites can be pointed as accurately as bigger payloads, it will mean that unmanned satellites are going to get smaller very quickly. This lowers cost and increases the customer base, creating more business for launch companies.

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Rosetta’s comet has unexpectedly gone to sleep.

10:04 am

Rosetta’s comet has unexpectedly gone to sleep.

An image snapped earlier this month by ESA’s Rosetta spacecraft shows its target comet has quietened, demonstrating the unpredictable nature of these enigmatic objects. The picture was captured on 4 June by Rosetta’s scientific camera, and is the most recent full-resolution image from the narrow-angle sensor. It has been used to help fine-tune Rosetta’s navigation towards comet 67P/Churyumov–Gerasimenko, which was 430 000 km away at the time.

Strikingly, there is no longer any sign of the extended dust cloud that was seen developing around nucleus at the end of April and into May, as shown in our last image release. Indeed, monitoring of the comet has shown a significant drop in its brightness since then.

Rosetta’s approach for the next few months and arrival at the comet in August should be quite exciting.

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SpaceX today released a new video of the most recent Falcon 9R vertical take-off and landing test flight.

9:47 am

The competition heats up: SpaceX today released a new video of the most recent Falcon 9R vertical take-off and landing test flight.

Video below the fold. The flight was to test the deployment and use of fins for controlling the stage during its return to Earth. Watch them unfold and adjust themselves beginning at about 1:15 into the video. In the second half you can see them near the top of the stage.
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In an editorial today the Washington Times labels SLS “the rocket to nowhere” and condemns Senator Richard Shelby (R-Alabama) for trying to sabotage the new commercial manned space companies in order to fund it.

8:59 am

In an editorial today the Washington Times labels SLS “the rocket to nowhere” and condemns Senator Richard Shelby (R-Alabama) for trying to sabotage the new commercial manned space companies in order to fund it.

As I’ve said for the past two years, the high cost and slow development of SLS will increasingly make it a loser in its political battle with the new commercial companies. Eventually legislators will recognize its impractically and unaffordability — especially if the commercial companies continue to meet their milestones and achieve success, as they have been doing. When that happens, the influence of individual senators like Shelby to shovel pork to their particular states or districts will be outweighed by the overall political benefits for everyone in Congress to get American astronauts into space quickly and cheaply on an American-built spaceship.

This editorial by a major newspaper signals the continuation of this political process.

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SpaceX and ORBCOMM have now set Friday, June 20, as the date for next commercial launch of the Falcon 9.

8:49 am

SpaceX and ORBCOMM have now set Friday, June 20, as the date for next commercial launch of the Falcon 9.

The article is interesting in that it is somewhat critical of SpaceX’s overall failure so far to meet its launch manifest schedules. The point is well taken, but it seems to me that most of the delays were related to getting the upgraded Falcon 9 into operation. Now that this has happened, I expect SpaceX’s launch rate will continue to accelerate.

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On Monday ULA signed contracts with several American companies to begin development of an engine to replace the Russian built first stage engine used by the Atlas 5.

8:43 am

The competition heats up: On Monday ULA signed contracts with several American companies to begin development of an engine to replace the Russian built first stage engine used by the Atlas 5.

The commercial contracts between ULA and prospective U.S. engine builders cover technical feasibility analyses, high-fidelity planning, schedule, cost and technical risk assessments, and cost estimates, ULA said in a statement released Monday. … ULA did not identify which companies will undertake the engine studies. Jessica Rye, a ULA spokesperson, also declined to say how many companies signed the contracts with the launch provider. The contracts are for early-stage studies of a hydrocarbon-fueled engine optimized for first stage propulsion with “aggressive recurring cost targets,” according to ULA.

All the engine concepts will support a first launch by 2019, and ULA expects to select a future concept and engine supplier by the fourth quarter of this year, the company said. ULA will evaluate the feasibility of the new engine concepts for both private investment and the potential for government-industry investment.

For the American rocket industry this is good. The only negative I can see is the possibility that Congress will allocate a lot of cash and requirements for building the new engine, which will increase its cost, slow its development, and make it less competitive. If they instead do it like NASA has done with its commercial crew development and let companies compete to build it, they will get it sooner and cheaper, and the industry will develop more options.

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Getting the Russian Soyuz capsule prepped to take two tourists around the Moon.

8:59 am

More capitalism: Getting the Russian Soyuz capsule prepped to take two tourists around the Moon.

The key detail in this story is not so much that they are beginning to figure out the engineering upgrades necessary to fling a Soyuz capsule around the Moon but that Space Adventures has apparantly finally gotten two passengers who have put down deposits for the lunar flight. For years they have said they had one ticket holder, suspected to be James Cameron, but without a second passenger the flight could not go forward. It now appears that they have gotten a deposit from that second person.

Posted on the road in New Mexico.

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The competition heats up: European aerospace companies Airbus and Safran have signed an agreement to merge their rocket divisions.

8:24 am

The competition heats up: European aerospace companies Airbus and Safran have signed an agreement to merge their rocket divisions.

The companies said the joint-venture would combine Airbus Group’s launch systems with Safran’s propulsion systems, but hinted at broader integration of public and private activities in an effort to duplicate the success of planemaker Airbus. Europe’s Ariane 5 space launcher dominates the market for large commercial satellites but faces growing concerns over its future due to competition from Space Exploration Technologies (SpaceX), run by billionaire entrepreneur Elon Musk.

To respond to the threat, Airbus and Safran aim to lead a drive towards an integrated European launch firm drawing on the lessons of Airbus’s planemaking unit, which was spurred into turning itself from being a consortium into a single company by the merger of transatlantic rivals Boeing and McDonnell Douglas in 1997. [emphasis mine]

The article, like practically every other report about Europe’s space effort in the past two years, singles out the competitive threat being made to their market share by SpaceX. Increasingly, the price reductions being offered by Musk’s company combined with its repeated success in launching payloads into orbit is forcing Europe to cut its own costs and become more efficent, something they have not bothered to do in decades. As result access to space is about to get signigicantly cheaper.

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After successfully completing its standard prelaunch static fire, SpaceX has delayed the Sunday Falcon 9 commercial launch at the request of its customer which wishes to do further tests of the six satellites on board.

5:42 pm

After successfully completing its standard prelaunch static fire, SpaceX has delayed the Sunday Falcon 9 commercial launch at the request of its customer which wishes to do further tests of the six satellites on board.

A new launch date is yet to be determined.

Posted from Durango, Colorado.

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Sierra Nevada has announced that it plans to do additional test flights in 2014 of its prototype Dream Chaser engineering test vehicle

4:51 pm

Sierra Nevada has announced that it plans to do additional test flights in 2014 of its prototype Dream Chaser engineering test vehicle.

This is the same test vehicle that skidded off the runway during its first flight when one of its landing legs did not deploy. The company has never released any images of that smashup, but has said the craft was salvageable. I imagine this announcement is part of the continuing lobbying campaign by all the companies (SpaceX, Boeing, Sierra Nevada) competing in NASA’s commercial manned program. NASA is supposed to down select to two companies, maybe only one, by the end of the summer.

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The test of a new parachute system for Mars landing has been delayed until the end of June due to high winds.

4:47 pm

The test of a new parachute system for Mars landing has been delayed until the end of June due to high winds.

The space agency was forced to scrub six launch attempts over the past two weeks — the latest and last planned for this Saturday (June 14) — as a result of unusually poor wind conditions at the U.S. Navy’s Pacific Missile Range facility in Kauai, Hawaii. The balloon-launched Low-Density Supersonic Decelerator (LDSD) craft is intended to help NASA develop the means to land heavier spacecraft, and eventually humans, on Mars.

“All of the vehicle systems [and] our team were ready and prepared for all of the launch days; we were ready to go,” said Mark Adler, LDSD project manager at NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, California. “The only thing that held us up was that none of the launch dates had or will have acceptable weather conditions.”

They have literally run out of their available time at the range, and must let others play through first while they renegotiate for a new slot of time later.

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For half a billion dollars Google has purchased satellite company Skybox Imaging.

10:25 am

The competition heats up: For half a billion dollars Google has purchased satellite company Skybox Imaging.

Google plans to use Skybox’s satellites to make better maps with “up-to-date imagery,” the company said in a statement. “Over time, we also hope that Skybox’s team and technology will be able to help improve Internet access and disaster relief—areas Google has long been interested in.” Skybox has only a single satellite in orbit right now but plans to fly a fleet of them to cover the entire globe at all times. Constantly updated satellite images would be of interest to everyone from agricultural companies and hedge funds to hardware stores. A demonstration earlier this year showed how Skybox satellites could be used to monitor oil reserves from space.

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