Tag: spaceflight

China releases images from lunar rover and lander

10:33 am

Yutu on the Moon

China has made available a new batch of very cool images taken by its Chang’e 3 lander and Yutu rover, and Emily Lakdawalla at the Planetary Society has figured out how to view them.

In a recent guest blog post, Quanzhi Ye pointed to the Chinese version of the Planetary Data System, and shared the great news that Chang’e 3 lander data are now public. The website is a little bit difficult to use, but last week I managed to download all of the data from two of the cameras — a total of 35 Gigabytes of data! — and I’ve spent the subsequent week figuring out what’s there and how to handle it.

So, space fans, without further ado, here, for the first time in a format easily accessible to the public, are hundreds and hundreds of science-quality images from the Chang’e 3 lander and Yutu rover. I don’t usually host entire data sets (PDS-formatted and all) but I made an exception in this case because the Chinese website is a bit challenging to use.

The image above is a cropped version of Yutu, taken by the lander. Be sure and go to the link to see the full image as well as others.

5 comments

Curiosity moves on, scoop still not working

10:10 am

Curiosity’s science team has finished its work at Namib Dune and has decided to move on, even though they are still analyzing an unspecified issue with the rover’s scoop instrument.

So far, in the week since they first had a problem while sifting sand from the dune, they have not described in any way what the problem is. All they have said is this:

Unfortunately, the CHIMRA behaved in an unexpected way during processing of the third scoop on Sol 1231, which prevented completion of the arm activities planned for last weekend.

The robot arm functions, and they used it yesterday to get some extreme close-ups of the sand, but it appears they cannot use the scoop at this time.

Leave a comment

A look inside Comet 67P/C-G

9:53 am

The Rosetta science team has determined that Comet 67P/C-G has no voids or large caverns in its interior, and that its low density is because its dust and water ice have mixed to produce a “fluffy” density.

In a new study, published in this week’s issue of the journal Nature, a team led by Martin Pätzold, from Rheinische Institut für Umweltforschung an der Universität zu Köln, Germany, have shown that Comet 67P/Churyumov-Gerasimenko is also a low-density object, but they have also been able to rule out a cavernous interior. This result is consistent with earlier results from Rosetta’s CONSERT radar experiment showing that the double-lobed comet’s ‘head’ is fairly homogenous on spatial scales of a few tens of metres.

The most reasonable explanation then is that the comet’s porosity must be an intrinsic property of dust particles mixed with the ice that make up the interior. In fact, earlier spacecraft measurements had shown that comet dust is typically not a compacted solid, but rather a ‘fluffy’ aggregate, giving the dust particles high porosity and low density, and Rosetta’s COSIMA and GIADA instruments have shown that the same kinds of dust grains are also found at 67P/Churyumov-Gerasimenko.

One comment

Falcon 9 to be modified

9:44 am

The competition heats up: SpaceX is modifying its Falcon 9 rocket based on engine tests it performed on the December 22 returned first stage.

SpaceX will be making modifications to its Falcon 9 rocket based on what the company learned from re-igniting the engines on the vehicle it landed. That’s according to SpaceX president Gwynne Shotwell, who spoke about the state of the company today at the Commercial Space Transportation Conference in Wasington, DC. Shotwell didn’t specify what those modifications will be, but said the changes will make the vehicle “even more robust” for its ascent into space.

This report helps explain why SpaceX has pushed back all planned launches of the upgraded Falcon 9 rocket. Their tests of the returned first stage revealed issues that they think are important enough to be addressed before another rocket is launched, and they are proceeding to deal with those issues.

It also illustrates an enormous advantage they have over every other rocket company that has ever existed in the past. They, unlike all past rocket companies, actually have a used first stage that they can study to see the real consequences of launch and landing. All previous estimates of those consequences were only based on computer models and speculation.

2 comments

February 2, 2016 Batchelor podcast

10:48 pm

Below the fold is Tuesday’s podcast of my appearance on the John Batchelor show. In addition to discussing Falcon Heavy, Ariane 6, and the question of rocket re-usability, I also lambasted the glacially slow pace of NASA’s Orion project, producing four capsules for a mere $17 billion in only 19 years! And speaking of glaciers, I also noted in the science segment the stonewalling at NOAA that prevents scientists from analyzing the rational behind their “adjustments” to their climate data, all of which cool the past and warm the present.
» Read more

Leave a comment

Luxembourg to establish space property rights

10:34 am

The competition heats up: The government of Luxembourg today announced an initiative to establish a legal framework that will ensure property rights in space for private investors.

The Luxembourg Government announced a series of measures to position Luxembourg as a European hub in the exploration and use of space resources. Amongst the key steps undertaken, as part of the spaceresources.lu initiative, will be the development of a legal and regulatory framework confirming certainty about the future ownership of minerals extracted in space from Near Earth Objects (NEO’s) such as asteroids.

Luxembourg is the first European country to announce its intention to set out a formal legal framework which ensures that private operators working in space can be confident about their rights to the resources they extract, i.e. rare minerals from asteroids. Such a legal framework will be worked out in full consideration of international law. Luxembourg is eager to engage with other countries on this matter within a multilateral framework.

The announcement is a bit vague about what exactly Luxembourg really plans to do. For example, it is unclear if this framework will only apply to Luxembourg citizens, or will be used to bring the private efforts from other countries to Luxembourg (the more likely scenario). It also does not tell us how the initiative will deal with the UN Outer Space Treaty, which essentially outlaws countries from establishing their own legal framework in space. Individuals can supposedly own private property in space under that treaty, but no country can claim territory or impose its own legal framework on any territory, thus making any private property claims unclear and weak.

4 comments

North Korea announces planned satellite launch

10:19 am

North Korea today revealed plans to place a satellite in non-geosynchronous orbit sometime in the next two weeks.

News of the planned launch between Feb. 8 and Feb. 25 drew fresh U.S. calls for tougher U.N. sanctions already under discussion in response to North Korea’s nuclear test. State Department spokesman John Kirby said the United Nations needed to “send the North Koreans a swift, firm message.”

Pyongyang has said it has a sovereign right to pursue a space programme by launching rockets, although the United States and other governments worry that such launches are missile tests in disguise.

It is horrifyingly hilarious to read the bluster put forth by Obama administration officials about this new North Korean effort to develop ICBMs that, as the article says, “could reach the U.S. West Coast.” Besides wanting to send “a swift, firm message,” they call the North Korean launch announcement a “slap in the face”, “another destabilizing provocation,” and “an egregious violation.” They then say they are working “cooperatively and effectively with the Chinese to counter this threat.”

It is laughable, but terrifying at the same time. North Korea, led by the worst kind of power-mad tyrant, is developing the ability to launch nuclear weapons to any place on Earth, and all our leaders can do is whine how mean they are.

3 comments

New Shepard launch update

10:49 pm

The competition heats up: Blue Origin expects to do about one launch per month of its New Shepard rocket in the next two years leading up to commercial space tourism flights in 2018.

Reports from the meeting quoted [Blue Origin executive Brett] Alexander as saying there would be a couple of dozen such test flights over the course of the next two years – which works out to an average of one flight per month. Alexander also told the gathering that it’s still too early to announce the ticket price for passenger flights.

One comment

First SLS launch will carry 13 cubesats

10:42 pm

NASA today announced that the first test flight of its giant SLS rocket, more powerful than the Saturn 5 and intended to make human missions beyond Earth orbit possible, will carry 13 cubesats in addition to its Orion capsule.

Because the mission plans on sending the unmanned Orion on an Earth orbit beyond the Moon, these cubesats will have an opportunity to go where no cubesat has gone before.

Leave a comment

NASA ships a capsule

9:10 am

In what appears to me to be a overwrought attempt to make the minor shipment of one Orion capsule appear to be a major achievement, NASA on Monday transported the next Orion capsule from Louisiana to Florida.

They used the NASA’s Super Guppy cargo plane to do it, even though I suspect that the capsule really isn’t that large and could have likely been shipped by road in a truck for a lot less. The agency also apparently made a big deal about this shipment with the press, which like sheep went along with it.

The pictures here illustrate what I mean. I grant that the Super Guppy is a cool plane, and it is certainly fun to see how it is loaded and flies, but from a cost perspective this seems to be a very expensive way to transport the capsule.

As a result, the impression this all leaves me with is that NASA is really not doing very much with Orion, working at a snail’s pace to stretch out the payments, and thus has to sell every little thing to convince the public that this project is accomplishing a lot.

4 comments

Another 5 month slip of first Falcon Heavy launch

9:46 am

In the heat of competition: Amid a slew of SpaceX launch delays in the past month due to the introduction of an upgraded Falcon 9, Elon Musk noted at a student event in Texas on Sunday that the first demo launch of the Falcon Heavy is likely to happen in September, not April as previously announced.

The article is mostly focused on the launch delays of the Falcon 9, which for some of SpaceX’s customers are becoming a financial problem. The company is obviously trying to make sure that further Falcon 9 launches are a success, but the unreliability of its schedule is clearly a reason satellite companies like Eutelsat have signed new contracts with Russia’s ILS or Arianespace. Even with the problems Russia has had with its Proton they have managed a more reliable launch schedule.

Then again, the Proton and Ariane 5 have been around for decades. Their companies aren’t trying to improve them in any way. The delays in SpaceX’s schedule are somewhat understandable in this context. Better to launch slowly with new designs then to have a failure that entirely stops things for months.

Nonetheless, it might be wise for SpaceX to settle on the present Falcon 9 design for awhile, so that they can catch up and make their customers happy. Moreover, the further delay of the Falcon Heavy launch is definitely disappointing.

2 comments

An issue with Curiosity’s scoop

10:35 pm

The unit at the end of Curiosity’s robot arm that scoops up sand and processes it through sieves experienced “an anomaly” on January 25, causing a halt in arm operations.

The instrument has been scooping up sand from the sand dune that the rover has been studying recently. So far there has been no details at all about the “anomaly”, so it is unclear how serious the problem is. In the meantime the rover has been using its cameras and other instruments to do other observations.

Leave a comment

Russian Proton rocket successfully launches commercial satellite

10:21 pm

The competition heats up: The Russians successfully put a European commercial communications satellite into orbit today their Proton rocket.

It was the sixth successful Proton launch since their May failure. The key quote from the article however was this:

ILS owner Khrunichev State Research and Production Space Center of Moscow has said it would give ILS leeway to reduce prices to work its way back into the regular commercial-launch rotation alongside SpaceX and Europe’s Arianespace. The decline of the Russian ruble against the U.S. dollar has made that task easier as most commercial launch contracts are priced in dollars.

In other words they are going to cut prices to compete, and the falling ruble has given them more leeway to do it.

Leave a comment

Water ice on Pluto’s surface

1:33 pm

The uncertainty of science: An analysis of data from New Horizons suggests that water ice is more widespread on Pluto’s surface than previously believed.

The new map shows exposed water ice to be considerably more widespread across Pluto’s surface than was previously known — an important discovery. But despite its much greater sensitivity, the map still shows little or no water ice in the informally named places called Sputnik Planum (the left or western region of Pluto’s “heart”) and Lowell Regio (far north on the encounter hemisphere). This indicates that at least in these regions, Pluto’s icy bedrock is well hidden beneath a thick blanket of other ices such as methane, nitrogen and carbon monoxide.

As the press release notes, water ice is actually “Pluto’s crustal ‘bedrock'”, so there really is plenty there. It is just buried below a surface of methane, nitrogen, and carbon monoxide “topsoil”.

Leave a comment

Europe settles on Ariane 6 design

6:47 pm

The competition heats up? Airbus Safran and the European Space Agency have settled on the design of their next generation rocket, Ariane 6.

It will not be re-usable, and though they say it will be 40-50% cheaper to produce than Ariane 5, it is very clear from the quotes in the article that they are instead depending on trade restrictions to maintain their European customers, even if it costs them a lot more to put satellites in orbit.

For its part, Airbus Safran does not envisage making Ariane 6 recoverable, not in the short term. Mr Charmeau [the company’s CEO] believes that different market conditions apply in Europe and the US, which means there will not be a single, winner-takes-all approach. He cites, for example, the restricted procurement that exists in all major political blocs, which essentially bars foreign rockets from launching home institutional and government satellites. Nowhere is this more true than in the US, but in Europe too there is an “unwritten rule” that European states should use European rockets.

From an American perspective this lazy attitude is fine with me. Let American companies compete aggressively. They will then leave the Europeans and everyone else in the dust.

3 comments

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.

One comment

McCain and Air Force question ULA military arrangement

9:53 am

On Wednesday, the military arrangement between the Air Force and ULA came under strong attack.

First, Senator John McCain (R-Arizona) and House Majority Leader Kevin McCarthy (R-California) introduced a bill in Congress that would re-instate the ban on ULA’s use of Russian engines in the Atlas 5 rocket. The ban had been lifted when Senators Richard Shelby (R-Alabama) and Richard Durbin (D-Illinois) snuck language doing so into the giant omnibus budget bill in December.

Second, at a hearing in the Senate on Wednesday, Air Force, under attack by Senator McCain for its sweetheart deal which gives ULA $800 million annually whether or not it launches anything regardless, admitted that it is thinking of terminating that deal early.

Air Force Secretary Deborah Lee James told the Senate Armed Services Committee during a Wednesday hearing the service is considering early termination of the current EELV Launch Capability (ELC) contract, a unique arrangement set up in 2006 to fund the cost of maintaining ULA launch infrastructure. At the time, the arrangement made sense because ULA was the Pentagon’s sole source for military space launch. “I was very surprised and disappointed when ULA did not bid on a recent GPS competitive launch opportunity,” James said. “And given the fact that there are taxpayer dollars involved with this ELC arrangement I just described to you, I’ve asked my legal team to review what could be done about this.”

The McCain bill is not likely to pass. However, the pressure he is putting on the Air Force, combined with the renewed and cheaper competition being offered by SpaceX, could very well lead to the ending of ULA’s EELV deal.

I expect to see a similar scenario play out in connection with Orion/SLS sometime in the next two years. When SpaceX and others begin to fly manned capsules and big rockets for relatively little money, our elected officials are eventually going to notice how much more expensive that bloated government program is, even as it doesn’t accomplish much. Some of them will suddenly realize the political advantage in attacking SLS, and begin to do so.

One comment

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.

Leave a comment

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.

3 comments

Comet 67P/C-G’s active surface

9:28 am

Comet 67P/C-G's active surface

Cool image time! The Rosetta science team today released a spectacular image, taken by Rosetta’s high resolution camera, of the surface of Comet 67P/C-G. A cropped version is above and below the fold. A cropped version of the full image, focusing in on the smooth and active area dubbed Imhotep, is above.

This smooth dusty terrain, which covers about 0.8 sq km, is etched with curvilinear features stretching hundreds of metres and which have been found to change in appearance over time. Many large boulders are also seen scattered within the smooth terrain, including the boulder Cheops in the foreground. Smaller but more numerous boulders are associated with exposed cliff faces and are most likely the product of erosion. In some debris falls, detailed analysis has revealed the presence of water ice.

I have also included, below the fold, a second close-up crop from this same image, showing the layered cliffs to the left of Imhotep as well as several mysterious as-yet not understood round features at the cliff’s base.
» Read more

2 comments

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

4 comments

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.

Leave a comment

Angara at Vostochny trimmed

10:16 am

Due to cuts in the Russian government’s ten-year plan for aerospace, the number of Angara launchpads at the new Vostochny spaceport has been slashed in half, with construction delayed as well.

On January 20, 2016, Roskosmos officials admitted that budget cuts at the end of 2015 required to drop plans to build one of the two launch pads for Angara rockets in Vostochny. Previously, the Russian space officials claimed that a dual launch complex for the Angara was absolutely necessary to support the four-launch scenario of the lunar expeditions relying on the Angara-5V rocket. The beginning of the construction of the remaining single pad was now delayed from 2016 to 2017.

Based on all the different reports I’ve read, they have also eliminated in the 10-year plan all lunar missions and the construction of a new space station. Essentially, their budget can only barely sustain what they are already doing. Like NASA, they have too large a labor force — jobs maintained for pork barrel reasons rather than actually accomplishing anything — that makes it impossible for them to afford anything new.

Leave a comment

Orion: construction in slow motion

9:57 am

Today NASA announced completion of the welding of the next Orion capsule, a job that this story said took about three months to do 7 welds. The story also noted this:

After putting on the finished touches, NASA plans to ship the vehicle to the Kennedy Space Center (KSC) aboard NASA’s Super Guppy airplane on or about Feb. 1. At KSC, engineers working inside the Neil Armstrong Operation and Checkout Building (O & C) will spend the next two years outfitting Orion for launch in late 2018 by installing all the systems and subsystems for its inaugural flight to the Moon and back.

Overall this is the third Orion capsule that NASA has built, following the Ground Test Article (GTA), which did not fly, and the EFT-1 capsule which successfully launched just over one year ago on Dec. 5, 2014. [emphasis mine]

Three months to do 7 welds. Two years to outfit a capsule. Wow! At that pace they might launch before the end of the century.

Seriously, this is an absurdly slow work pace, illustrating the wasteful nature of the SLS/Orion program. Orion’s budget these days is about $1 billion per year, with a total cost expected to reach $17 billion by the time the fourth capsule is built and launched in 2023, for a project first proposed in 2004.

In other words, it will take NASA and Lockheed Martin almost 20 years to build four capsules for the cost of $17 billion. That is absurd. Compare it to commercial space: The entire budget for all the commercial crew contracts, including both cargo contracts and the manned contract, is about half that, and will produce four different vehicles, all of which will be built and flying by 2019 at the latest. And in the case of Dragon and Cygnus, more than a dozen capsules have already flown.

Is there no one in Washington with the brain power to read these numbers and come to a rational decision about SLS/Orion? It costs too much and isn’t getting us into space. Moreover, at its pace and cost it isn’t doing anything to help the American aerospace industry. Better for Congress to put money into other things, or save it entirely and reduce the deficit and thus not waste it on this pork barrel garbage.

Unfortunately, our elected officials today not only don’t have brains, too many of them are downright corrupt. They prefer to bankrupt the nation for their own petty gain rather than do things that might help the nation grow.

11 comments

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

Leave a comment

Dantu Crater on Ceres

11:30 am

bright areas on crater wall on Ceres

Cool image time! As Dawn continues its close survey of Ceres, the science team has released this image of Dantu Crater, showing the bright spots on its rim as well as fractures on the crater floor. The picture was taken in December and has a resolution of about 120 feet per pixel.

Though scientists now favor salt deposits of some kind as the cause of the bright areas on Ceres, they also recognize that this theory is not yet proven. Moreover, the theory suggests that the salt was deposited as part of a water brine. When the water in the brine evaporated away, it left the salt behind. The problem, however, is that we do not yet have direct evidence that there is any water on Ceres at all, either on the surface or in the interior, which makes this theory exceedingly uncertain.

2 comments
1 … 357 358 359 360 361 … 481