Bad news for the space shuttle: The root cause of the cracks on Discovery’s external tank is still not identified.
After more than seven months in orbit, the unmanned X-37B space plan has successfully returned to Earth. Key quote:
“Boeing and the Air Force are building another X-37B vehicle scheduled for launch in the spring of 2011.”
Update: Since several different reports are listing slightly different totals for the number of days in orbit, I’ve edited my note above to be less precise. I could add up the days myself, but that involves more math than I prefer to do!
Sierra Nevada, one of the new aerospace companies competing for NASA’s commercial crew money, appears to be the frontrunner to use the two X-34 suborbital rockets recently taken out of storage.
The telescope in an airplane flew its first observation mission today.
Is this finally going to happen? Richard Branson says Virgin Galactic could be flying tourists within a year.
It’s now official: the second test launch of the Falcon 9, with the Dragon capsule, is set for December 7, with a static test firing of the rocket’s engines on December 3.
The military reports that the X-37B’s mission is complete and it will be returning to Earth as early as Friday.
Lockheed Martin is moving ahead with its plan to launch the first Orion capsule on a Delta 4 Heavy rocket, notwithstanding the desire of NASA that Lockheed instead focus on using NASA’s own as yet unbuilt rocket system.
NASA engineers continue to struggle to analyze the cause of the cracks in Discovery’s external tank. Key quote:
Forty-three tanks have been constructed with the lighter alloy, requiring just more than 4,600 stringers. So far, 31 cracks have been found, including those on Discovery.
“All of those have been known assembly issues,” Shannon said of the previous cracks, which were traced to misalignments of the stringers as they were fastened to the tank or to mishandling in which the fragile stringers struck or were struck by other hardware. Discovery’s cracks were the first found and repaired at the launch pad using techniques previously employed only at the production plant.
The ongoing detective work is immune to schedule and budget pressure, according to Bill Gerstenmaier, NASA’s associate administrator for space operations.
According to the Union of Concerned Scientists (UCS), the reusable X-37B — in orbit at the moment and expected to return to Earth in the near future — has no compelling use.
“It’s hard to think of what could make that mission compelling,” [UCS scientist Laura] Grego told SPACE.com. “It doesn’t protect you from antiaircraft fire, and the element of surprise doesn’t really work in your favor if you’re launching on Atlas V [rocket].”
In reading this article, it is fascinating how completely unimaginative the scientists from the Union of Concerned Scientists seem. Nor do I find this surprising. For the last few decades this organization has opposed almost every new aerospace engineering project that might actually have made possible the human exploration of space. It’s as if these scientists feared new ideas and grand achievement. Sadly, the UCS had great influence with policy makers in the 1970s, 1980s, and 1990s, and thus helped limit the American government’s space program capabilities during that time period.
Fortunately, the UCS’s influence has waned in recent years. Though the American government space program might be dying, it is because of budget limits and a lack of leadership by the Obama administration, not the unimaginative thinking of the UCS. Furthermore, their lack of imagination — which once seemed so culturally dominant — seems to no longer influence the rest of society. The happy result is the creative innovation coming from many new private aerospace companies.
The UCS meanwhile reminds me of an old curmudgeon, who won’t keep quiet but everyone still ignores.
Why NASA recently pulled the X-34 out of storage. Key quote:
The idea to ship the X-34s to Mojave and inspect them originated with a Dryden-based NASA engineer, Brown said. “When he found out this thing still existed … he decided people should take a look to see if it could be refurbished and made flightworthy.” That’s when the contractors came to retrieve the two neglected spacecraft, pictured above en route to the Mojave.
But that doesn’t mean NASA has formal plans to operate the X-34s under its own auspices, now or ever, Brown stressed. Provided they’re in flyable shape, it’s far more likely the space agency will make the X-34s available to private industry. “There are a number of firms interested in these things, developing communications and other technologies,” Brown said. “It would be helpful if they had a vehicle.”
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The Pentagon’s second test flight of its hypersonic test vehicle is pending.
Three astronauts from ISS landed safely in Kazakhstan this morning. Meanwhile, the next crew contingent passed its exams in Russia.
The space war continues. Lockheed is now planning a test flight of Orion capsule in 2013. The flight would occur, not on an Ares rocket, but on a Delta IV Heavy. More here.
Specifics of the proposed test flight haven’t been reported before. But those plans may run into flak as Republican lawmakers take control of House committees and subcommittees that oversee NASA, according to industry officials, including competitors, critical of Lockheed Martin’s efforts.
At least some of the incoming Republican panel chairmen and other senior GOP lawmakers, these officials said, may view the proposed test flight as circumventing congressional language to quickly develop a new heavy-lift NASA rocket able to transport astronauts past low-earth orbit. Congress has adopted language strongly favoring space-shuttle derived rockets for this purpose, rather than a version of the Delta IV. The Delta IV is operated by a joint venture between Lockheed Martin and Boeing Co.
Cassini back in operation.
Discovery’s launch delayed until December 17 at the earliest. Key quote:
Shannon said that one of the concerns was that another major crack might liberate a piece of insulating foam large enough to damage Discovery, as happened during the January 2003 liftoff of Columbia. A suitcase-sized chunk of foam punched a hole in Columbia’s wing, dooming the ship and her crew of seven astronauts when they reentered the atmosphere.
Shannon said that teams were also examining the possibility that the tanks have been flying with undetected cracks for years.
Cracks became more common after the 1998 debut of “super-lightweight” tanks built with a more brittle aluminum-lithium alloy. Since then, 29 cracks in stringers making up the ribbed “intertank” section that separates liquid hydrogen and oxygen tanks have been found and repaired in 18 tanks, including Discovery’s and a tank scheduled for use by the shuttle Atlantis next summer.
An update of Discovery’s launch status, including possible launch dates.
This week the Russians will give “final exams” to the main and backup crews for the next expedition to ISS.
Though NASA constantly rates its astronauts, it does not give them “exams.” This whole procedure (as well as how this Russian article is written) gives a nice flavor of the cultural differences between the U.S. and Russia.
Is the mission of the X-37B space plane almost complete?
Is this real, or a call for funding? The Russian space company Energia says it will begin work next year on nuclear engines for Russia’s space program.
A prototype solar sail was launched from Alaska on Friday. If it unfurls as planned, it will be the U.S.’s first solar sail success after several failures.
Better late than never: The FAA today issued a license to SpaceX, allowing it to bring its Dragon capsule back to Earth after launch.
An update on the efforts to rescue 29 trapped New Zealand miners.
Via Clark Lindsey, it appears that NASA has taken from storage its two X-34 suborbital spaceships and is considering returning the ships to flight status.
The new space race: Virgin Galactic and KLM Airlines.
Hooray for private space! Future tests of SpaceShipTwo will be even more challenging.
Gas explosion today in a New Zealand coal mine has trapped 27 miners.
How the U.S. snoops on Russian nukes from space.
Hooray for private space! SpaceShipTwo successfully completed its third glide flight yesterday.
NASA managers have once again delayed the launch of Discovery, now set for no earlier than December 3.
