A short seven minute commentary by Bill Whittle explaining why some of us do difficult and challenging things, while others do not.
After concluding eight years of science observations in orbit around Venus, Venus Express is about to begin a series of atmospheric plunges to test the engineering of aerobraking at the extreme.
They plan to dive into Venus’s hellish atmosphere as low as 80 miles, where they hope not only to get data about this little studied region but to also learn more about the engineering of aerobraking. The article also gives a nice overview of the knowledge that Venus Express gathered in the past eight years.
Want to watch some astronomers blow up the top of a mountain? You can!
Seriously, construction crews will in June begin blasting to prepare this mountain top in Chile for the European Extremely Large Telescope (E-ELT), a gigantic optical telescope that will have a primary mirror 39 meters or 128 feet across and is scheduled for completion sometime in the next decade. To mark the event they will be providing a live stream for everyone worldwide to watch.
Debris from the Proton launch failure yesterday has been found in China.
The vagueness of yesterday’s Russia reports suggested to me the possibility that the rocket might have fallen into another country’s territory, something the Russians would normally not like to advertise. It appears, however, that most of the satellite and rocket has burned up before hitting the ground.
This report clarifies some details about the failure. It was the Proton’s third stage that failed, not the Briz-M stage that has caused failures in the past. This is also the 6th failure of a Proton since December 2010, a poor launch record that strongly indicates serious quality control problems in the manufacture of this rocket.
Update: Inmarsat, one of the Proton rocket’s biggest customers, is considering dumping the Proton for future launches. To do so will be expensive and will likely delay the launch of their next two satellites, both of which were scheduled for launch on a Proton in 2014. Nonetheless, it appears they are considering it.
When it rains it pours: A Russian Proton rocket crashed today nine minutes after launch.
Considering the tensions between the U.S. and Russia over space, combined with the increasing competition for the launch market created by SpaceX’s lower prices, another Proton failure now is something the Russians could do without. Moreover, the Russians were planning a lot of Proton launches in the next few months to catch up from last year’s launch failure. Many of these scheduled launches were commercial and were going to earn them hard cash. This failure definitely hurts, and will certainly be used as justification by their government in increase its control over that country’s aging aerospace industry.
A new report suggests that Virgin Galactic’s SpaceShipTwo will be incapable of flying to an altitude of 100 kilometers.
The competition heats up: Amid its political kerfuffle with the U.S., Russia has significantly increased the government budget of its space industry.
The new space policy, which pledges 1.8 trillion rubles toward modernization and development efforts throughout the Russian space industry, appears to be a step toward ensuring Russia is free to pursue its own interests in space after its ISS obligations are fulfilled in 2020. Rogozin tweeted that Russia will discuss cooperative space projects with China at a summit meeting in Beijing on May 19. [emphasis mine]
A space station partnership with China would make enormous sense, as China’s station designs are based on Russian space station engineering. The two would likely would work together quite well. Moreover, both systems were designed intelligently as prototype interplanetary spaceships, something that was not done for the U.S. part of ISS. Thus, ISS does not function well for testing the engineering for future space projects, something that the Russians are very conscious of.
In an effort to reassure its ticketholders, Virgin Galactic sent them an email on May 10 disputing the article that said there are cracks in WhiteKnightTwo’s wings.
The email was interestingly sent before the article was published, which of course meant that it could not directly address any of its findings.
The story above also has a link to an article detailing the many predictions by Virgin Galactic about when they will begin commercial flights, going back to 1999. To put it mildly, their track record has not been good.
ULA today stated that they have enough Russian engines in stock to complete the 36 launch U.S. military bulk buy.
Whether they will actually complete that bulk buy remains unknown.
#18 is the best, as it illustrates bluntly in one image the technological advances in just the past decade.
Read the full transcript of Tuesday’s briefing in Russia on the subject of the U.S./Russian cooperation in space.
It is very worthwhile reading the entire thing. The text makes it very clear that Russia is not kicking us out of ISS, as has been wrongly reported by several news agencies. It also makes clear that the Russians consider the Obama administration’s actions childish, thoughtless, and unproductive. They also emphasize how the U.S. government is generally an “unreliable” partner in these matters, something that I have noted before when our government has broken space agreements with Europe.
The text also clarifies the GPS situation. The stations we have in Russia are in connection with scientific research, something they wish to do also in the U.S. If an agreement isn’t reached, that research will cease. Actual use of GPS for navigational purposes will not be effected.
Side note: NASA says that they have not yet received any official notice from Russia concerning the briefing above. This might be because Rogozin’s briefing was meant merely as a shot across the bow, or it could be that the Russians have not yet gotten around to doing it. We shall see.
Is it cracked or not? On Tuesday Virgin Galactic rolled WhiteKnightTwo out of its hanger “as part of a gearing up process.”.
Though the above article is very vague about what is being done, this article explains that they are doing taxi tests of new landing gear. The timing, however, makes me suspect that this is also a public relations ploy to counter yesterday’s reports about cracks in the vehicle’s wings.
Three astronauts safely returned from ISS on Tuesday evening.
What a waste: NASA has chosen the four shuttle engines that will be used to launch SLS on its first mission in 2021.
All four engines were used multiple times on many shuttle missions. They will fly once on SLS, at a cost of many billions, and then end up destroyed when that giant rocket’s first stage falls into the ocean. Worse, no one has really defined what the goal of that first launch will be. It might merely be a test launch, with no humans on board.
To me, it would be wiser to put the engines into storage and wait until we have a new reusable capability that could take advantage of the reusable engineering of these engines. Throwing them away on a pork-barrel boondoggle like SLS seems so stupid.
Much has been made about the sanctions the Obama administration has imposed on any cooperation with Russia due to the situation in Ukraine and how those sanctions might damage the commercial and manned space efforts of the United States.
So far, all evidence has suggested that the sanctions have little teeth. The Obama administration exempted ISS from the sanctions. It also appears to be allowing the shipment of all commercial satellites to Russia for launch. Even a court injunction against using Russia rocket engines in U.S. military launches was lifted when the Obama administration asked the judge to do so.
The Russians now have responded. Why do I take their response more seriously?
» Read more
Archeologists think they have located the wreck of Christopher Columbus flagship, the Santa Maria, from his 1492 voyage.
The U.S.’s most capable deep-sea unmanned research sub has been lost more than six miles deep in the Pacific.
More problems for Virgin Galactic: A news story today reports that cracks have been discovered in the wings of WhiteKnightTwo.
Sources tell me the cracks are along the spars that run the length of the wings. Specifically, they are located where the spars connect with the fuselage. My sources tell me the cracks have caused quite a bit of concern among the engineers at Virgin and Scaled. One particularly worrisome aspect is that nobody knows why or when they occurred.
I’m told there is some comfort in the repairs being made based on previous Scaled experience in patching composites. However, since the cause of the cracks is uncertain and WhiteKnightTwo is unique in terms of its size and the stresses placed on it by SpaceShipTwo, the engineers are in uncharted territory. They don’t know if they have addressed the root cause, or whether the problem will reoccur.
If this story turns out to be trie, it will likely be a disaster for Virgin Galactic. Not only can they not yet fly SpaceShipTwo because of engine issues, the mother ship that puts the spacecraft into the air can’t fly either.
Does the auction sale of an Excalibur Almaz capsule signal the end of this manned space commercial company?
It certainly looks that way, which is tragic in that the company had a very smart and viable idea: Use already built Soviet-era manned space equipment to launch a space hotel and provide a ferry to it for a relatively low cost. The development was already done and the hardware already built. All they had to do is refurbish and update things.
Ground tests of SpaceShipTwo’s engines continue.
No flight tests have occurred in four months, however, which suggests that they have decided to abandon their first engine design and are now doing these new ground tests to prove the reliability of the new engine before proceeding to flight tests. The lack of flight tests also suggests that Richard Branson’s most recent announcement that he will definitely fly as a passenger this year is most likely hogwash.
The trip of what is essentially a circuit breaker on ISS has reduced the station’s power by about 12.5%.
The cause and solution has not yet been isolated. The loss of power at this point is not critical, and has not effected any experiments or the safety of the crew.
The article itself gives a very detailed and informative outline of the system and what has happened, though you have to spend the time to wade through the alphabet soup of NASA terminology — SSU, SAWs, VDC, DCSUs, MBSUs, DDCUs, POR — that NASA uses.
Building a scale model of the International Space Station — using matchsticks!
Recently completed by Acton, the wooden ISS is as impressive in size as it is in detail. Comprised of 282,000 matchsticks, the 1/26 scale model required 8 gal (30 L) of glue and took roughly 1,950 hours to complete. Whereas the actual ISS measures out at 108.5 m (356 ft) wide and 72.8 m (239 ft) long, Acton’s scaled down version measures out at an impressive 4.1 m (13.5 ft) and 2.8 m (9.2 ft) wide. Solar arrays, trusses, communication components, and even the Space Shuttle Atlantis, are all there in intricate detail.
With pictures.
Fact checking Elon Musk’s statements about his company’s efforts to reuse the Falcon 9 first stage reminds us of some space history and one of Musk’s chief competitors.
The bottom line: Bringing the first stage back to Earth safely and vertically is doable, and has been done before.
Because of issues preventing a dress rehearsal countdown and launchpad static fire of the Falcon 9 rocket SpaceX has delayed Saturday’s launch.
No new date has yet been set, but I expect the delay will not be long.
In response to the Obama administration’s request a judge has lifted her injunction against the purchase of Russian rocket engines for the Atlas 5 rocket.
More here. It appears that, at least for the moment, the Atlas 5 rocket will be allowed to buy these engines. Whether the Russians will continue to allow them to buy them however remains an open question, especially if things in the Ukraine get worse.
Bertha is stuck under Seattle and the taxpayers might be required to pay millions, if not billions, to get the giant drilling machine moving again.
Failures like this do happen, but to me they seem to happen routinely to modern big government projects. I wonder why.
Ten modern conveniences we take for granted that didn’t exist before 1970.
I especially like the picture of the audio cassette and the pencil with the caption, “Our children will never know the link between the two.”
How to turn an American spacecraft ferrying astronauts to ISS serve as a lifeboat as well.
A very interesting read, as it outlines the specific technical problems faced by engineers that one wouldn’t normally consider. The capsule has to be able to remain functional and reliable after months in orbit, but it also has to become functional at a moment’s notice, should an emergency happen.
The creation in the lab of an as yet unnamed superheavy element adds weight to the theory that there might exist even heavier elements that are stable in nature.
The scientists did not observe element 117 directly. Instead, they searched for its daughter products after it radioactively decayed by emitting alpha particles—helium nuclei with two protons and two neutrons. “The heavy nuclei makes an alpha decay to produce element 115, and this also decays by alpha decay,” says Jadambaa Khuyagbaatar of GSI, lead author of a paper reporting the results published on 1 May in Physical Review Letters.
After a few more steps in this decay chain, one of the nuclei produced is the isotope lawrencium 266—a nucleus with 103 protons and 163 neutrons that had never been seen before. Previously known isotopes of lawrencium have fewer neutrons, and are less stable. This novel species, however, has an astonishingly long half-life of 11 hours, making it one of the longest-lived superheavy isotopes known to date. “Perhaps we are at the shore of the island of stability,” Düllmann says.
If these superheavy elements could be created, they would be the stuff of science fiction. They might have properties that we would find extremely useful.
The competition heats up: SpaceX’s next Falcon 9 commercial launch, set for early Saturday morning, will once again attempt a soft splashdown of its first stage.
If this launch happens as scheduled it will also be the fastest turn-around between launches for the company.
