Tag: competition

Private company proposes commercial airlock for ISS

10:01 am

The competion heats up: The private company NanoRacks has proposed building a large airlock for ISS which could be used to launch private cubesates while also allowing NASA to eliminate spacewalks by bringing faulty equipment inside for repairs.

For commercial opportunities, NanoRacks has a small satellite launcher, and it is also designing a “haybale” system to launch as many as 192 cubesats at a time. After the airlock is configured, it would be depressurized and sealed. Then a station robotic arm could grab it, move it away from the vehicle, and deploy its payloads.

NASA is also interested in the opportunity to potentially fix large, external components of the space station. Before the space shuttle’s retirement, NASA used the sizable delivery vehicle to stash dozens of replacement pumps, storage tanks, controller boxes, batteries, and other equipment on the station, known as ORUs. When one of these components broke, astronauts would conduct a spacewalk to install a replacement unit.

However sometimes the problem with a broken unit is relatively minor, such as a problematic circuit card. With a larger airlock, damaged components could be brought inside the station, assessed, and possibly fixed, saving NASA the expense of building and delivering a new unit to the station—or losing a valuable spare. Finally, the space agency could use the airlock to dispose of trash that accumulates on station and can be difficult to get rid of.

It is exactly this kind of technology, spurred by the lure of profits, that interplanetary spaceships need if they are going to be maintainable far from home.

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Computer program learns and then wins at Go

9:35 am

A computer program, dubbed AlphaGo, has successfully beaten a professional player of Go for the first time.

What is significant however is the method used by that computer program to win:

The IBM chess computer Deep Blue, which famously beat grandmaster Garry Kasparov in 1997, was explicitly programmed to win at the game. But AlphaGo was not preprogrammed to play Go: rather, it learned using a general-purpose algorithm that allowed it to interpret the game’s patterns, in a similar way to how a DeepMind program learned to play 49 different arcade games2.

This means that similar techniques could be applied to other AI domains that require recognition of complex patterns, long-term planning and decision-making, says Hassabis. “A lot of the things we’re trying to do in the world come under that rubric.” Examples are using medical images to make diagnoses or treatment plans, and improving climate-change models.

If computer programs are now successfully able to learn and adapt it means that it will become increasingly difficult to distinguish between those programs and actual humans.

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Air Force certifies Falcon 9 upgrade for military launches

6:35 pm

The competition heats up: The Air Force has approved use of SpaceX’s upgraded Falcon 9 rocket for use in military launches.

What this means is that SpaceX is increasingly considered an acceptable bidder for future military launch contracts. Moreover, it means that SpaceX will be able to use the Falcon 9 first stage that they are landing vertically, giving them more recoverable first stages for future flights.

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Blue Origin to increase New Shepard launch rate

6:32 pm

The competition heats up: Blue Origin expects to increase the rate of test flights for its New Shepard reusable rocket in 2016.

“We expect to shorten that turnaround time over time this year, and fly this vehicle again and again,” [Blue Origin President Rob Meyerson] said. Those upcoming tests will use the same New Shepard vehicle that flew the previous two flights, with hardware and software modifications as needed between flights. Meyerson said the company still plans to perform “dozens” of test flights of New Shepard over the next couple of years before the company is ready to carry people on the vehicle. “It really depends on how the flight test program goes,” he said. “It could be a little faster than that, or it could be a little longer than that, depending on what we learn.”

I expect that by the end of 2016, the U.S. will have two proven reusable first stage rockets and two operational orbital cargo spacecraft. And that doesn’t count the likely first demo flight of Falcon Heavy.

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Blue Origin reflies and lands New Shepard again

8:53 am

The competition heats up: Blue Origin yesterday successfully re-flew its New Shepard booster, vertically landing it for the second time.

Data from the November mission matched our preflight predictions closely, which made preparations for today’s re-flight relatively straightforward. The team replaced the crew capsule parachutes, replaced the pyro igniters, conducted functional and avionics checkouts, and made several software improvements, including a noteworthy one. Rather than the vehicle translating to land at the exact center of the pad, it now initially targets the center, but then sets down at a position of convenience on the pad, prioritizing vehicle attitude ahead of precise lateral positioning. It’s like a pilot lining up a plane with the centerline of the runway. If the plane is a few feet off center as you get close, you don’t swerve at the last minute to ensure hitting the exact mid-point. You just land a few feet left or right of the centerline. Our Monte Carlo sims of New Shepard landings show this new strategy increases margins, improving the vehicle’s ability to reject disturbances created by low-altitude winds.

They are not clear whether the capsule was re-flown as well. They do say they intend to re-fly New Shepard many times in 2016, probably at an increasing rate. If so, I would say that the race to be the first to sell suborbital tickets to tourists is won by Blue Origin, and that Virgin Galactic and XCOR have been left in the dust.

I have embedded the company’s video below the fold of yesterday’s flight.
» Read more

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Europe kicks in money for Dream Chaser

2:54 pm

The competition heats up: NASA’s decision to award Sierra Nevada a cargo contract has triggered a $36 million investment by the European Space Agency (ESA) to build a new docking unit for Dream Chaser at ISS.

Sierra Nevada Corp.’s win of a NASA contract to ferry cargo to the International Space Station will trigger a $36 million investment by the 22-nation European Space Agency following a cooperation agreement to be signed in the coming weeks, ESA said. Once the agreement is signed, ESA will begin work building the first flight model of the International Berthing and Docking Mechanism (IBDM), which Sierra Nevada’s Dream Chaser Cargo System will use to attach itself to the space station.

ESA said it would spend 33 million euros ($36 million) to complete the design of the IBDM and build a flight model for Dream Chaser’s first cargo run. Future IBDMs will be financed by Sierra Nevada, ESA said.

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Video of Dragon/SuperDraco engine test

9:20 am

The competition heats up: SpaceX today released a video of a five second test they did in November of the SuperDraco thrusters attached to their Dragon capsule.

I have embedded the video below the fold. This test, which took place on a test stand with the capsule hanging from a crane cable, was part of their work to develop a launch abort capability for the manned version of Dragon. The thrusters will also be used eventually to make possible vertical land landings of the capsule.
» Read more

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World View gets incentives to settle in Arizona

9:27 am

The competition heats up: The space tourism balloon company World View has obtained $15 million in subsidies from an Arizona county to base their operation in Tucson.

Today’s go-ahead from the Pima County Board of Supervisors represents an initial step toward setting up the tourist operation. The supervisors voted to invest $15 million, backed by future tax revenue, to build the spaceport. World View would lease the facility from the county over a 20-year term to pay back the investment. The facility would include a launch pad, headquarters building and manufacturing facility, World View said.

Increasingly it looks like Virgin Galactic’s SpaceShipTwo is being left in the dust as other companies move forward with their own plans.

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India’s first launch of 2016

9:00 am

The competition heats up: India today successfully completed its first launch in 2016, placing in orbit the fifth of what will be a seven satellite constellation of home-built navigational satellites.

It was India’s 50th orbital launch, and another success for their smaller PSLV rocket. The article is especially worth reading as it includes a nice history of the country’s rocket program.

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Tuesday’s Batchelor podcast

10:38 pm

Below the fold is the podcast of my appearance on the John Batchelor Show today, Tuesday. It was fun comparing the recent successes of private space compared to the big space programs of the U.S., Russia, and China. I also made reference to this essay I wrote after watching Elon Musk first announce in 2011 his plans to vertically land the first stage of his Falcon 9 rocket. Took him only five years to do it.
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