Tag: NASA

NASA’s interim administrator to retire in April

11:00 pm

NASA’s interim administrator, Robert Lightfoot, has announced that he plans to retire in April.

Lightfoot’s retirement leaves NASA without any leadership, as the Senate has shown no interest in confirming Trump’s candidate for the position, Congressmen Jim Bridenstine (R-Oklahoma).

All 49 Democrats in the Senate are expected to vote against to Bridenstine’s confirmation, and Sen. Marco Rubio (R-Florida) is also reportedly also opposed, Space News reported. Sen. John McCain (R-Arizona) is not in Washington as he undergoes treatment for cancer, leaving Bridenstine short of the 50 votes needed for confirmation.

Bridenstine is not a perfect choice, and I have reservations about his commitment to commercial space, but the reasons for the Democratic opposition is, as far as I can tell, the same as all their other opposition to every other Trump or Republican proposal: pure spite. “We hate it because of YOU!”

The lack of a politically appointed administrator at NASA however is not necessarily a bad thing, considering that the important stuff happening right now is not at NASA but in the private sector. Having NASA adrift for awhile might actually work to weaken NASA’s pork projects, SLS and Orion, that are in direct competition with private space.

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The ever-receding Space Launch System

10:20 am

Today a story at Space News reveals that NASA has decided to forgo construction of a second mobile launcher for its Space Launch System (SLS). Instead, they will modify the one they have.

The mobile launch platform, originally built for the Constellation Program and currently being modified to support the SLS, will be used for one launch of the initial Block 1 version of the SLS, designated Exploration Mission (EM) 1. That platform will then have to be modified to accommodate the taller Block 1B version that will be used on second and subsequent SLS missions.

Agency officials said late last year they were considering starting work on a second mobile launch platform designed from the beginning to accommodate the Block 1B version of the SLS. They argued that doing so could shorten the gap of at least 33 months between the first and second SLS missions caused in part by the modification work to the existing platform.

The first mobile launcher was built and modified for an estimated $300 to $500 million. NASA obviously has decided that the politics of building a second won’t fly. The cost is too great, as would be the political embarrassment of admitting they spent about a half a billion for a launcher they will only use once. (That this mobile launcher is leaning we will leave aside for the moment.)

What this does however is push back the first manned SLS/Orion launch. At present, the first unmanned mission is likely to go in June 2020 (though don’t be surprised if that date sees further delays). If it takes 33 months after that launch to reconfigure the launcher for the first manned mission, that manned mission cannot occur any sooner than April 2023. That second launch however is planned to be the first to use SLS’s new upper stage. To put humans on it untested seems foolish, doesn’t it? NASA is going to have to fly an extra mission to test that upper stage, which is going to add further delays to the schedule.

In November I predicted that the first manned SLS/Orion mission would not happen before 2025. At the time it was assumed that the second flight of SLS would have to launch the unmanned Europa Clipper mission, in order to test that upper stage. Now however it appears that the Trump administration wants to shift Europa Clipper to a commercial launch vehicle, probably Falcon Heavy.

This means that either astronauts will be flying on an untested SLS upper stage, or NASA will have to add a test launch in April 2023, followed some time thereafter by that manned mission. Since NASA does not at present have a budget for a third mission, I am not sure what is going to happen here.

What I do know is that SLS is certain to get delayed again. By 2025 we will have paid close to $50 billion for SLS and Orion, and the best we can hope for is a single manned mission. And that one mission will have taken 21 years to go from concept to launch.

This is not how you explore the solar system. With a schedule like this, all SLS and Orion are doing is distributing pork to congressional districts and to the big space companies (Boeing and Lockheed Martin) that are building both. Establishing the United States as a viable space-faring nation is the last thing these players have in mind.

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Mars Reconnaissance Orbiter comes out of safe mode

7:28 am

On February 23 the Mars Reconnaissance Orbiter (MRO) engineering team was able to bring the spacecraft out of safe mode, after a low battery voltage reading caused it to shut down.

Mission team members brought MRO out of safe mode on Friday (Feb. 23), NASA officials said. The orbiter seems to be in good health overall; the battery voltage is back to normal, MRO is communicating with Earth, and temperatures and power levels are stable, agency officials said.

But MRO’s handlers haven’t put the orbiter back to work yet. “We’re in the diagnostic stage, to better understand the behavior of the batteries and ways to give ourselves more options for managing them in the future,” MRO project manager Dan Johnston, of NASA’s Jet Propulsion Laboratory in Pasadena, California, said in a statement. “We will restore MRO’s service as a relay for other missions as soon as we can do so with confidence in spacecraft safety — likely in about one week. After that, we will resume science observations.”

Overall this sounds like very good news.

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Webb faces more delays, cost overruns

7:23 am

A new GAO report released yesterday says that the James Webb Space Telescope faces further delays and cost overruns.

This is par for the course. Webb has become an incredible boondoggle. I hope it eventually gets launched and works, but its gigantic cost, $8 to $9 billion (compared to an original $1 billion budget), and delayed schedule suggests that this was not the right way for NASA or the astronomical community to build its space telescopes. Further, this quote from the story suggests something fundamentally wrong:

The GAO report also noted that, during the sunshield deployment exercises, Northrop discovered several tears in the material which it attributed to “workmanship error.” Those tears can be repaired but may consume more schedule reserve.

Is this thing really going to work? I really hope so, but have been increasingly doubtful as the delays and problems have piled up.

Meanwhile, NASA and the astronomical community is still pushing to get funding for its next “Webb,” the Wide-Field Infrared Survey Telescope (WFIRST). This project, similar in scope as Webb, is hardly off the ground and already has budget overrun issues. The Trump administration recommended cancelling in its budget proposal earlier this month, but I would be surprised if that recommendation goes through, considering the pork this new project represents.

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The first SLS mobile launcher is leaning

8:49 am

Though NASA says it is not a problem, they have now revealed that the very expensive mobile launcher to be used for the first unmanned SLS launch in 2019, is leaning slightly.

The notes spoke of engineers being concerned about a lean towards the North – which would be towards the rocket when mated – with the angle of the leaning claimed to be seen as increasing when the Vertical Stabilizer porch was installed. It was also claimed the ML Tower is twisting and this issue increased when the porch was installed. This was cited as the reason additional arm installations onto the Tower were placed on hold, until the leaning-twisting issue is understood. Next in line for installation are the ICPS (Interim Cryogenic Propulsion Stage) Umbilical Arm, the Crew Access Arm and the two Vehicle Stabilizer Arms.

NASASpaceFlight.com’s Philip Sloss took the concerns to NASA to ask for clarifications. NASA responded, saying “the ML leaning/bending was not the cause of the delay in the install of the Crew access arm. These are unrelated.” However, they did expand on the specific issue, mainly to note it is understood and does not currently require any additional mitigation or modification to the ML.

“NASA’s mobile launcher is structurally sound, built to specifications, and does not require a design change or modifications. As expected, the mobile launcher is not perfectly still,” a NASA spokesperson added.

Note that this mobile launcher is not compatible with the second SLS launch, which would be the first manned flight in 2023. NASA will either have to modify it significantly at great costs, or build another, discarding this launcher after only one use.

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NASA approves 2020 launch window for first Dream Chaser flight

8:32 am

Capitalism in space: Sierra Nevada has gotten the okay from NASA to aim for a 2020 launch window for the first flight of its reusable Dream Chaser mini-shuttle.

SNC announced Feb. 7 that it had received “authority to proceed” on that mission using the company’s Dream Chaser vehicle. The mission will launch on a United Launch Alliance Atlas 5 rocket in late 2020. The mission is the first of six in the company’s Commercial Resupply Services (CRS) 2 contract it won in 2016 to transport cargo to and from the ISS. SNC received a CRS-2 contract along with current CRS providers Orbital ATK and SpaceX.

“While we won the contract a couple of years ago, the contract still needed to be validated by a task order,” said Mark Sirangelo, executive vice president of SNC’s Space Systems business area, in a Feb. 7 speech at the Federal Aviation Administration’s Commercial Space Transportation Conference here. That order, he said, is the “biggest step” to date on the program. That flight will be a “full scale, fully operational mission,” he said, even though it will represent the first orbital flight of the Dream Chaser. Orbital ATK and SpaceX, who developed their Cygnus and Dragon spacecraft, respectively, under earlier NASA Space Act Agreements, flew demonstration missions before starting their operational CRS cargo flights.

Do not be surprised if this flight does not launch on schedule. I fully expect that development will push it back into 2021, a delay that would not be unreasonable.

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Lockheed Martin starts assembling first manned Orion capsule

10:38 am

My heart be still! Thirteen years after winning its contract to built the manned Orion capsule, Lockheed Martin proudly announced this week that it has finally begun building the first capsule that will carry humans.

I should add that this first manned flight is not scheduled to happen for another five years. Moreover, they have so far spent at least $14 billion on this capsule, and will likely spend another five billion by the time it finally launches. That’s 18 years and $19 billion, for a single manned mission. Seems somewhat shameful to me.

The article is filled with much of the dishonest hyperbole that has surrounded the Orion capsule from the start:

  • “NASA’s first of a new generation of manned deep space exploration craft”
  • “Orion will be a major step in the American program to establish a Deep Space Gateway station, return to the Moon, and eventually make a manned landing on Mars”
  • “Orion has tremendous momentum.”
  • “This is not only the most advanced spacecraft ever built, its production will be more efficient than any previous capsule.”

What Orion really is is a lie. It is nothing more than the ascent/descent capsule for the as-yet still undesigned, unfunded, and unbuilt interplanetary spaceship that will be needed for any real deep missions. It is also a boondoggle of the worst sort, providing pork for congressional districts while accomplishing nothing.

Lockheed Martin is lying in its press release here, and it is shameful that any journalist who knows anything about space should buy into those lies.

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New Zimmerman op-ed: NASA’s safety bureaucracy sabotaging manned space

9:50 pm

The website American Greatness has now published a new op-ed I have written that describes how the bureaucracy at NASA is acting to sabotage commercial space, even as it ignores far more significant safety issues with SLS and Orion.

I was prompted to write the op-ed after reading the reports in the past few weeks by NASA’s safety panel and the GAO, both of which clearly favored NASA’s bloated projects.

What both reports actually demonstrate is that the bureaucrats in Washington have very little interest in safety, but instead are more focused on putting their thumbs on the scale in order specifically to harm these private efforts—especially SpaceX’s. One report in particular, by NASA’s Aerospace Safety Advisory Panel (ASAP), was especially hostile to these private efforts, even as it remained completely unconcerned about similar but far worse safety issues that exist with NASA’s government-built and competing SLS and Orion programs.

Both reports also illustrated starkly the complete lack of understanding that the Washington community has for the nature of exploration, the very task that NASA was founded to spearhead. The result is a bureaucratic culture that makes the manned exploration of space by the United States practically impossible.

If things do not change, expect this country to be bypassed in the coming decades by the rest of the world as the solar system is colonized and settled.

Check it out.

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The landing site of NASA’s next Mars lander

6:55 pm

InSight's landing site on Mars

InSight, NASA’s next Mars lander scheduled to launch later this year (two years late), is aiming for a landing site in a region called Elysium Planitia, a flat plain north of the equator.

InSight’s scientific success and safe landing depends on landing in a relatively flat area, with an elevation low enough to have sufficient atmosphere above the site for a safe landing. It also depends on landing in an area where rocks are few in number. Elysium Planitia has just the right surface for the instruments to be able to probe the deep interior, and its proximity to the equator ensures that the solar-powered lander is exposed to plenty of sunlight.

The target area is centered at 4.5 N latitude and 135.9 East longitude. If you zoom in on that latitude and longitude at the archive of Mars Reconnaissance Orbiter (MRO) high resolution images, you get the red blob on the right, which shows how many images they have taken of this area in preparation for InSight’s mission. The X indicates the location of lat/long above.

Below the fold is a reduced version of the MRO image for the center of this target area. The black spots near the center are thought to be a recent crater impact site. In general, this image shows an area with more features than the region around it. Most of the landing area of Elysium Planitia is a featureless flat plain with scattered small craters. Since InSight is not a rover, where it lands will be where it does its research, so there was no reason to pick a site with lots of interesting surface features. Moreover, since InSight is focused not on studying the surface but the interior geology of Mars, it matters little what the surface looks like anyway. One instrument will be a seismograph, while another will insert a thermometer about sixteen feet into the ground to measure the interior temperature.
» Read more

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Problem with new ISS robot arm hand

5:28 pm

Update: Software patch fixes robot arm latching mechanism. (Hat tip reader jburn.)

Less that a week after astronauts did a spacewalk to install a new latching end effector on the end of one of the station’s robot arms NASA has decided to do another spacewalk to put the old “hand” back on.

Hints of an issue cropped up during the previous spacewalk when two of the six Expedition 54 astronauts—NASA’s Mark Vande Hei and Scott Tingle—replaced the end effector, called LEE-B, but ground teams were unable to communicate with the mechanism. “The spacewalking crew demated and remated the connectors and ground teams were able to power up the arm to an operational state on its secondary communications sting leaving the arm operational but without a redundant communications string,” a NASA statement reads.

After several days of troubleshooting, NASA and the Canadian Space Agency—which built the 57.7-foot (17.6-meter) long Canadarm2—said the decision was made to use the upcoming spacewalk to re-install the old LEE-B to restore the redundant capability with the arm. The space agency said if Canada and its robotics specialists find a way to solve the issue, the Jan. 29 spacewalk could be delayed.

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NASA’ safety panel illustrates the impossibility of exploration by NASA

12:36 pm

Last week NASA’s Aerospace Safety Advisory Panel (ASAP) issued its 2017 report [pdf], detailing the areas it has concerns for human safety in all of NASA’s programs. Not surprisingly, the report raised big issues about SpaceX, suggesting its manned launch schedule was questionable and that there were great risks using the Falcon 9 rocket as presently designed.

ASAP was especially concerned with the issues with the Falcon 9 COPV helium tanks and how they were connected with the September 2016 launchpad explosion, as well as SpaceX’s approach to fueling the rocket. Below is a screen capture of the report’s pertinent section on this.

ASAP SpaceX concerns

The report complements NASA and SpaceX for looking at a new design for the COPV helium tanks, but also appears quite willing to force endless delays in order to make sure the issue here is completely understood, even though this is likely impossible for years more.

ASAP also raises once again its reservations about SpaceX’s method of fueling the Falcon 9, which would have them fill the tanks after the astronauts are on board so that the fuel can be kept cold and dense to maximize performance. This issue I find very silly. The present accepted approach is to fill the tanks, then board the astronauts. SpaceX wants to board the astronauts, then fill the tanks. Either way, the astronauts will be in a rocket with tons of volatile fuel and oxidizer. I really do not see why it makes that much of a difference, especially with SpaceX building a successful track record using its approach with each successful commercial launch. They did 18 last year alone.

Below the fold is a screen capture of the report’s entire summary, with some sections highlighted by me.
» Read more

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R.I.P. John Young 1930-2018

8:33 pm

John Young, the ninth man to walk on the Moon and the only man to fly a Gemini capsule, an Apollo capsule, and the space shuttle, passed away yesterday at the age of 87.

Young was the only spaceman to span NASA’s Gemini, Apollo and shuttle programs, and became the first person to rocket away from Earth six times. Counting his takeoff from the moon in 1972 as commander of Apollo 16, his blastoff tally stood at seven, for decades a world record.

He flew twice during the two-man Gemini missions of the mid-1960s, twice to the moon during NASA’s Apollo program, and twice more aboard the new space shuttle Columbia in the early 1980s.

His NASA career lasted 42 years, longer than any other astronaut’s, and he was revered among his peers for his dogged dedication to keeping crews safe — and his outspokenness in challenging the space agency’s status quo.

Young captained the first shuttle Gemini flight and the first space shuttle flight, and also flew twice to the Moon, landing once.

God speed.

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Atlas 5 man-rated upgrades approved by NASA for Starliner launches

11:17 pm

Capitalism in space: ULA announced this week that its Atlas 5 rocket has passed a NASA review that now approves the design changes necessary to allow that rocket to launch Boeing’s Starliner manned capsule.

“Design Certification Review is a significant milestone that completes the design phase of the program, paving the way to operations,” said Barb Egan, ULA Commercial Crew program manager. “Hardware and software final qualification tests are underway, as well as a major integrated test series, including structural loads. Future tests will involve launch vehicle hardware, such as jettison tests, acoustic tests, and, finally, a pad abort test in White Sands, New Mexico.”

Launch vehicle production is currently on track for an uncrewed August 2018 Orbital Flight Test (OFT).

The schedule to make that August flight happen still remains tight, but this approval brings it one step closer.

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Two finalists for 2020 deep space planetary mission picked by NASA

1:16 pm

NASA has narrowed its choice for a 2020s deep space planetary mission to two finalists, either a sample return mission to Comet 67P/C-G or a drone that would fly through Titan’s atmosphere.

The sample return mission sounds very doable with today’s technology. The Titan drone mission however is far more intriguing.

Dragonfly is a dual-quadcopter lander that would take advantage of the environment on Titan to fly to multiple locations, some hundreds of miles apart, to sample materials and determine surface composition to investigate Titan’s organic chemistry and habitability, monitor atmospheric and surface conditions, image landforms to investigate geological processes, and perform seismic studies.

If it was up to me and I had unlimited funds, I’d go with Dragonfly. We know far less about the outer solar system, and this mission would be an ideal way to increase that knowledge. It is also far more daring, which carries the risk that the costs to build and launch will rise uncontrollably.

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New exoplanet makes eight in rival solar system

1:27 pm

comparing solar systems

Worlds without end: Astronomers using Kepler data mined by computers have discovered an eighth planet in another solar system, making that system somewhat comparable to our own.

The newly discovered Kepler-90i — a sizzling hot, rocky planet orbiting its star once every 14.4 days — was found using computers that “learned” to find planets in data from NASA’s Kepler space telescope. Kepler finds distant planets beyond the solar system, or exoplanets, by detecting the minuscule change in brightness when a planet transits (crosses in front of) a star.

Vanderburg, a NASA Sagan fellow at UT Austin, and Shallue, a Google machine learning researcher, teamed up to train a computer to learn how to identify signs of an exoplanet in the light readings from distant stars recorded by Kepler. Similar to the way neurons connect in the human brain, this “neural network” sifted through the Kepler data to identify the weak transit signals from a previously missed eighth planet orbiting Kepler-90, a sun-like star 2,545 light-years from Earth in the constellation Draco. “For the first time since our solar system planets were discovered thousands of years ago, we know for sure that our solar system is not the sole record holder for the most planets,” Vanderburg said.

The image to the right compares the planet sizes between this solar system and ours. It does not show that, for this distant star, all eight planets have orbits closer to the star than the Earth, and would therefore be very unlikely to harbor life.

One more thing: This story is very cool, but it also is another one of those NASA press releases that the agency PR department overhyped beforehand, even allowing some reporters to think that it might involve the discovery of life beyond Earth. Not surprisingly, several news sources and radio shows asked me to talk about it. To their disappointment I said I’d rather wait, since NASA has overhyped more than a few stories like this in recent years. Once again, my instincts were right. This story has nothing to do with alien life, and though interesting, is actually not that big a deal.

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More delays expected for launch of Webb telescope

8:52 am

NASA’s chief scientist admitted during House hearings this week that there will possibly be further delays in the launch of the James Webb Space Telescope, now set for the 2nd quarter of 2019.

“At this moment in time, with the information that I have, I believe it’s achievable,” he said of the current launch window of March to June 2019, which NASA announced in September after delaying the launch from October 2018. However, he said an independent review “is exactly what we should be doing, and frankly I have directed the team to do just that in January.”

That review won’t start until January, he said, because of ongoing tests of unfolding the sunshade of the space telescope. Previous tests, he said, took much longer than anticipated, playing a key factor in the decision to delay the launch. An updated launch date, he said, would likely come in “January or February.”

Such an independent review was proposed earlier in the hearing by another witness, retired aerospace executive Thomas Young. “In my opinion, the launch date and required funding cannot be determined until a new plan is thoroughly developed and verified by independent review,” he said.

While it does make perfect sense to make sure everything is really really really ready before launch, that this telescope is already 8 years behind schedule and yet might still need more delays suggests that the whole project was managed badly, from start to finish.

The hearing also dealt with the cost increases NASA is experiencing for WFIRST. As is usual, it sounds like NASA’s buy-in approach there has worked, and that Congress will fork up the extra cash to keep that project alive, until it experiences further delays and more cost increases, when Congress will fork up even more money. Then, wash and repeat. The WFIRST budget is already up from about $3.5 billion to more than $4 billion. I predict before it is done it will have cost around $8-$10 billion, and not launch until the late 2020s, at the earliest.

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NASA confirms next Dragon launch will be on used first stage

6:32 pm

Capitalism in space: NASA today confirmed that it has finally approved the use of a Falcon 9 used first stage for the next Dragon launch on December 8.

NASA had said back on November 12 that they were considering this idea. It seems to me that SpaceX has probably been proceeding under the assumption they would say yes, which essentially at this point, only a few weeks from launch, put pressure on the timid NASA bureaucracy to finally get on the bandwagon.

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New report says WFIRST is “not executable”

11:05 pm

Another Webb! New NASA report has declared the agency’s next big telescope following the James Webb Space Telescope, dubbed the Wide Field Infrared Survey Telescope (WFIRST) is “not executable” and is significantly over budget.

“The risks to the primary mission of WFIRST are significant and therefore the mission is not executable without adjustments and/or additional resources,” the report states. It estimated the cost of the project at $3.9 billion to $4.2 billion, significantly above the project’s $3.6 billion budget.

Produced by an independent and external team to review the technical aspects of the program, its management, and costs, the report is critical of a series of key decisions made by NASA. The addition of a coronagraph and other design choices have made for a telescope that is “more complex than probably anticipated” and have substantially increased risks and costs, according to the report.

It also offered a scathing review of the relationship between NASA headquarters and the telescope’s program managers at Goddard Space Flight Center. “The NASA HQ-to-Program governance structure is dysfunctional and should be corrected for clarity in roles, accountability, and authority,” the report states.

Did you ever get a feeling of deja-vu? This is the same story that we saw with Hubble, and with Webb. It’s called a buy-in. The agency purposely sets the budget too low to begin with, gets it started, which then forces Congress to pay the big bucks when the budget inevitably goes out of control.

From my perspective I think this is the time to shut the project down. Since Hubble astronomers have apparently begun to take NASA’s cash cow for granted, and need to relearn the lesson that they don’t have a guarantee on the treasury. Once they get over the shock of losing WFIRST, they might then start proposing good space telescopes that are affordable and can be built relatively quickly, instead of these boondoggles that take forever and ten times the initial budget to build.

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