The competition heats up: Sierra Nevada has decided not to use its own hybrid engine on its Dream Chaser manned shuttle.
With the apparent decision by Virgin Galactic to also abandon this engine, it would appear that hybrid rocket technology is not yet ready for prime time, if ever.
Posted from Spokane, Washington, where Diane and I will be visiting my oldest friend Lloyd and his family for the rest of the week.
The competition heats up: On its next cargo mission to ISS Orbital Sciences plans on launching an upgraded Antares rocket.
For its third paid cargo mission to station, slated to launch Oct. 21, Orbital will replace the ATK Castor 30B Antares used for its latest launch with an ATK Castor 30XL. The upgrade will allow Cygnus to carry about 2,290 kilograms of cargo to station — an increase of nearly 40 percent by mass, compared with the second mission, according to Orbital’s Aug. 18 press release.
The Castor 30XL is the latest in the Castor 30 series ATK developed specifically as an Antares upper stage. A pair of Antares demonstration launches in 2013, which did not count toward fulfilling the company’s delivery-and-disposal contract with NASA, used the Castor 30A. ATK has lengthened subsequent versions of the motor, squeezing more power out of it by packing it full of more solid fuel.
Like SpaceX, Orbital Sciences is demonstrating the ability here to do operational missions simultaneously with developmental missions.
An evening pause: The creator strongly advises that you watch this in full screen HD with sound on. And I agree.
Hat tip Tom.
Russian scientists have found traces of sea plankton on the outside surface of the International Space Station.
The article is sadly lacking in many details, other than noting that the evidence suggests the organisms could live a long time in this harsh environment.
Posted en route to Spokane, Washington.
“Hamas has exacted a high price from Israel these past weeks. But it has also awakened a sleeping giant. The question now is whether the Palestinian cause is furthered, or dramatically weakened, by the fear this war has created.”
Read the whole thing. Combine this new Israeli resolve with the public relations disaster this war has been for Hamas and it seems obvious that there will be no easy concessions from the Israelis in any negotiations for years. And that I consider a good thing: The Israelis, as well as a good part of the civilized world, have finally realized that there is no point negotiating with someone who wants to kill you. Only when the Palestinians and the Arabs finally honestly and sincerely accept the presence of Israel will there be any chance for a negotiated settlement. And I don’t expect this anytime soon.
An evening pause: This Finnish band does a nice job of covering the AC/DC hard rock song Thunderstruck, but doing it in a bluegrass kind of way. The banjo player is especially amazing.
Hat tip to my lovely wife Diane.
Finding its sandy floor slipperier than expected, engineers have backed Curiosity out of Hidden Valley to drill some holes while they reassess the rover’s route.
The rover’s wheels slipped more in Hidden Valley’s sand than the team had expected based on experience with one of the mission’s test rovers driven on sand dunes in California. The valley is about the length of a football field and does not offer any navigable exits other than at the northeastern and southwestern ends. “We need to gain a better understanding of the interaction between the wheels and Martian sand ripples, and Hidden Valley is not a good location for experimenting,” said Curiosity Project Manager Jim Erickson of JPL. …
Curiosity reversed course and drove out of Hidden Valley northeastward. On the way toward gaining a good viewpoint to assess a possible alternative route north of the valley, it passed over the pale paving stones on the ramp again. Where a rover wheel cracked one of the rocks, it exposed bright interior material, possibly from mineral veins.
More and more, the journey to Mount Sharp appears to be increasingly adventurous for the rover.
The Rosetta science team has released a video and press release describing the upcoming maneuvers as it spirals into a close orbit of Comet 67P/C-G.
I’ve posted the video below the fold. If all goes well Rosetta will be circling the comet at a distance of about six miles come October 10.
» Read more
Link here.
A news story today in Defense News speculates that the competitive pressure from SpaceX is what forced ULA’s CEO to step down.
Changes at the CEO level are usually accompanied by a change in how business is done, said Byron Callan, an analyst with Capital Alpha Partners. “Generally, when you see abrupt leadership changes, there’s an abrupt change of strategic or tactical course needed,” Callan said. “You don’t make those changes unless you see something that needs fast corrective action.”
Caceres said he expects to see layoffs and a streamlining of ULA to find all possible cost savings. “My sense is you’re going to see at ULA a restructuring of some sort, because ultimately they’re going to have to find a way to be a lot more competitive on price,” he said.
This restructuring is entirely the result of the new competition from SpaceX, as repeatedly noted by the article.
In an interview for USA Today Richard Branson once again repeated his expectation that he will fly in space on SpaceShipTwo before the end of the year.
It sounds like they plan three test flights with their new engine, followed by Branson’s public relations stunt. Even if this plan happens, however, I do not see them ready to fly paying passengers, as they will probably need more test flights to make sure the ship and its engine are truly trustworthy.
Speculation grows on the upcoming down-select decision by NASA of its manned commercial space program.
Next up is the announcement of the transition to the Commercial Crew Transportation Capability (CCtCap) contracts, to be announced later this month, or early in September, depending on political direction. Although the source selection process is obviously an internal debate, with its results embargoed until the time of the NASA announcement, it is hoped that two of the commercial crew providers will move forward with additional funding.
At the ASAP meeting, Ms. Lueders expressed “NASA’s desire to continue the partnerships even after the announcement, including with companies not selected.” That continued association may be in the form of unfunded Space Act Agreements (SAA), not unlike that which Blue Origin is currently working under, as it develops a crew capsule outside of the trio working with CCiCAP funding. “People are recognizing the value of competition and have an appreciation for shared knowledge,” added Ms. Lueders. “NASA has learned from the companies and the companies have learned from NASA. It would be a big plus to continue the relationships.”
As to which companies are likely to win through to the CCtCap phase, that is a tightly kept secret. However, over recent months, sources have noted NASA’s strong affection toward the multi-capable Dream Chaser, while SpaceX has a growing track record with its Falcon 9 and cargo-Dragon combinations via its Commercial Resupply Services (CRS) missions. [emphasis mine]
My sense in the last few months has also leaned heavily in favor of Dragon and Dream Chaser, both of whom appear to be moving forward with construction at a fast pace. Boeing meanwhile has instead made it seem that it wishes to invest as little capital in its project as possible, unless it wins the competition. While the first two companies have unveiled real hardware, Boeing continues to show us mostly mock-ups.
