Tag: engineering

ULA replaces Sierra’s mini-shuttle with dummy payload to launch Vulcan in September

9:28 am

Because of continuing delays in preparing Sierra Space’s Tenacity Dream Chaser mini-shuttle for launch, ULA has been forced to remove it from the second launch of Vulcan in order to proceed with the launch in September as planned.

ULA needs to launch Vulcan for the second time and as soon as possible in order to get approval from the Pentagon to do military launches. The delays in getting Tenacity ready for launch has already impacted that schedule, as ULA had originally hoped to launch Vulcan on its second flight — with Tenacity as the payload — several months ago. Further delays beyond September would seriously damage not only ULA’s bottom line, but the military’s own needs. It is all for these reasons that ULA has now set up a new review team to force this schedule forward, likely under pressure from the Pentagon.

Sierra Space meanwhile says that Tenacity is still on track to be ready to launch before the end of the year, but it is unclear what rocket will carry it. ULA will likely offer another Vulcan rocket for the purpose, but to do so it will probably have to delay some other payload, and it is certain it will not do that to any upcoming military launches. Based on the announced launch schedule, it does not look like this launch can occur on a ULA rocket in 2024. ULA says it hopes to launch at least 20 times in 2025, so one of those launches will likely carry Tenacity.

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SpaceX launches 23 Starlink satellites, using a first stage for the 22nd time

9:08 am

SpaceX early this morning launched another 23 Starlink satellites, its Falcon 9 rocket lifting off from Cape Canaveral and using a first stage on its record-setting 22nd flight.

That stage successfully landed on a drone ship in the Atlantic. The flight was so routinely boring for the launch crew that the flight director felt no need to even bother having anyone do a T-10 second countdown at launch.

The leaders in the 2024 launch race:

68 SpaceX
28 China
8 Russia
8 Rocket Lab

American private enterprise now leads the world combined in successful launches, 79 to 42, while SpaceX by itself still leads the entire world, including other American companies, 68 to 53.

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An island of hundreds of scour pits in Mars’ largest volcanic ash field

2:05 pm

An island of scour pits
Click for original image.

Cool image time! The picture to the left, cropped, reduced, and sharpened to post here, was taken on April 25, 2024 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

It shows what the science team labels a “scour pit island,” an area about 13 miles long and 3.5 miles wide where the ground is covered by these pits.

Your eye may play tricks on you, reversing the elevations. These are all pits, with most having a central peak or ridgeline. To help, note that the sunlight is coming from the west. The arrow on the center left of the picture sits on a plateau above these pits.

According to this paper [pdf], the pits are slowly dug out by the wind coming from the southeast blowing to the northwest, as indicated by the arrows. The central peaks or ridges are thought to be a hint of the original topography, with the wind only able to pull ash from the terrain around these peaks.
» Read more

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Arianespace calls for Europe to require all European space payloads use European rockets

9:57 am

Arianespace, whose many-decade-long European launch monopoly is presently threatened by a wave of new rocket startups and an effort by European governments to created a competitive launch industry of many companies, has now urged Europe to require that all European space payloads use European rockets.

Arianespace head of public affairs Charlotte Lang has advocated for legislation that would require European missions to be launched aboard European rockets. Lang made the comments during the “Ensuring Long Term Autonomous Access to Space for Europe” panel on the first day of The European Space Forum conference. “The EU should enforce the principle of European launcher preference,” said Lang.

In a follow-up statement, Arianespace reiterated “the need for the EU to legislate that European missions are launched from European territory using launchers and technology manufactured in Europe by European providers.” The company identified the European Union’s planned IRIS² constellation as the “perfect opportunity to advance this initiative.”

Arianespace is like Blue Origin. It can’t get its rockets built and flying at a competitive price, so instead it advocates lawfare to limit competition in order to give it a favored position when it bids on future launch contracts.

In the case of Europe, I think this Arianespace effort will generally fall on deaf ears. The trend among numerous European governments (Germany, France, Italy) is to encourage new rocket companies to compete with Arianespace, in order to create options. These governments will of course wish to favor these new European rocket companies with any contract awards, but they will also not want to tie their hands with the kind of legislation Arianespace proposes. They all discovered in the past two years what could happen if they do that, when Arianespace failed to get Ariane-6 launched on time, and Europe ended up with no launch capabilities. During that time period they still had the option to use other non-European options (such as SpaceX). Having that flexibility in the future makes great sense.

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Blue Origin to FAA: Limit future SpaceX Starship launches at Cape Canaveral

9:38 am

Blue Origin has once again decided to use lawfare against SpaceX rather than actually build rockets that are competitive. As part of the process by the FAA to do a new Environmental Impact Statement on SpaceX’s plans for Starship/Superheavy launches at Cape Canaveral, Blue Origin last week submitted its own comment asking the FAA to cap the launches of its competitor, citing environment concerns.

The company recommends the following mitigation method for SpaceX’s Starship launches, prior to the company being issued a Vehicle Operator License:

“Capping the rate of Ss-SH launch, landing, and other operations, including but not limited to test firings, transport operations, and fueling, to a number that has a minimal impact on the local environment, locally operating personnel, and the local community, in consideration of all risks and impacts, including but not limited to anomaly risks, air toxin and hazardous materials dispersion, road closures, and heat and noise generation.”

Along with requesting a max number of Starship launches at the site, Blue Origin argues that the government increase launch infrastructure that opens other launchpads to nearby lessees when roads are forced to be closed for SpaceX launches. The filing also notes that SpaceX has already received environmental testing at its Starbase site in Boca Chica, Texas.

You can read Blue Origin’s full comment here [pdf]. Essentially, Blue Origin is attempting to use this new impact statement to have the federal government damage or destroy its competition.

Musk’s response was a two word tweet: “Sue Origin.”

It is very clear that Jeff Bezos’s company is poorly focused. In the last decade it has built almost nothing, while spending a lot of time filing lawsuits against its competition. This action is simply another example.

Worse, Blue Origin’s comment will provide ammunition for the continuing Biden administration lawfare against Musk and SpaceX, making it difficult for the FAA to approve the impact statement as requested by SpaceX. If so, the development and operational use of Starship/Superheavy will be seriously threatened.

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Collins reportedly in the process of canceling its NASA spacesuit contract

9:19 am

As if NASA didn’t have enough spacesuit problems, with a ISS spacewalk this week canceled because one of the NASA-built suits on the station began leaking water again, Collins Aerospace, one of the two companies that won contracts to build new spacesuits, is now in negotiations to end that contract.

But Collins’ role in the program has been bumpy and development has fallen behind schedule, and the company has been in talks with NASA officials on how to wind down its role in the program, the two people said. “After a thorough evaluation, Collins Aerospace and NASA mutually agreed to descope Exploration Extravehicular Activity Services (xEVAS) task orders,” a Collins spokeswoman said in a statement, referring to the spacesuit contract.

If this story is confirmed, it means at present only Axiom is building new spacesuits that can either be used on ISS or on future Artemis missions to the Moon and Gateway. Whether NASA will put out the Collins contract for bid again is unknown. In its original cargo capsule contracts early in the 2010s, one company failed to raise sufficient funds to build its capsule, so NASA cancelled it and awarded Orbital Sciences and its Antares rocket and Cygnus capsule the deal.

If the contract is put out for new bidding, SpaceX would be in a very strong position to win, as its own internally financed spacewalk spacesuits are about to get their first flight test on Jared Isaacman’s Polaris Dawn mission on the Resilience Dragon capsule later this summer.

The failure of Collins here is disturbing, and might be an indicator of an overall loss in American engineering capabilities. Once a challenge like this would have posed no problem for any American aerospace company. Now such tasks are increasingly difficult and unachievable.

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French rocket startup wins $16 million grant from French government

9:01 am

The French rocket startup Latitude has been awarded a $16 million grant from French government for development work on its proposed two-stage Zephyr orbital rocket, which is targeting 2025 for its first test launch.

Nor is this grant the only money the company has raised.

In January, Latitude announced that it had closed its Series B funding round, raising $30 million. In March, the company was one of four companies selected to receive a share of €400 million [$427 million] in subsidies from the French government. This funding is, however, only fully unlocked when the company completes its inaugural flight of Zephyr.

Though Latitude has obtained some private investment capital, it appears it is mostly relying on government funds. Under these conditions, it is unclear whether the rocket startup will be able to compete not only with the other new European rocket startups but with the rest of the world. Government funding is usually not well tied with profit or cost efficiency, and thus the company will have less incentive to develop a competitive rocket.

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SpaceX’s Falcon Heavy launches NOAA weather satellite

2:37 pm

SpaceX’s Falcon Heavy rocket today successfully launched a NOAA weather satellite, completing its first flight in 2024 and its tenth flight overall.

The two side boosters completed their first flight, with both landing back at Cape Canaveral. The core stage was allowed to fall into the ocean.

The leaders in the 2024 launch race:

67 SpaceX
28 China
8 Russia
8 Rocket Lab

American private enterprise now leads the world combined in successful launches, 78 to 42, while SpaceX by itself still leads the entire world, including other American companies, 67 to 53.

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Airbus forced to write off almost a billion dollars

9:42 am

Even though the problems that Boeing has been driving its customers to Airbus, Airbus yesterday revealed that its own business outlook is presently suffering, forcing it to write off $965 million.

Yielding to growing scepticism among suppliers over its plans for jet output, Airbus lowered its widely watched forecast for deliveries this year to around 770 jets from around 800. It also tempered plans to raise output of its best-selling A320neo family, by delaying the date at which it expects to reach a record production speed of 75 jets a month to 2027 from 2026. That compares with an estimated 50 jets a month now.

As a result of the lower delivery forecasts, which imply annual growth of 5% instead of 9%, Airbus lowered its main financial targets for 2024. It now expects underlying operating income of around 5.5 billion euros, instead of a range of 6.5 billion to 7.0 billion, and free cashflow of 3.5 billion instead of 4.0 billion.

The article focuses on Airbus’s engine supply issues that are restricting its ability to build jets. It makes no mention of the company’s joint partnership with Safran to build the Ariane-6 rocket, which has failed to garner the business predicted, even as it is about to make its inaugural launch on July 9th. Though peripheral to the airplane issues described, it is certainly a factor in these financial issues.

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Scientists surprised by new Webb data of the upper layers of Jupiter’s Great Red Spot

9:33 am

Jupiter's Great Red Spot, as seen in infrared
Click for original image.

The uncertainty of science: Using the Webb Space Telescope, scientists have obtained infrared data of the upper layers of Jupiter’s Great Red Spot, revealing that it is far more complicated that predicted by researchers.

The upper atmosphere of Jupiter is the interface between the planet’s magnetic field and the underlying atmosphere. Here, the bright and vibrant displays of northern and southern lights can be seen, which are fuelled by the volcanic material ejected from Jupiter’s moon Io. However, closer to the equator, the structure of the planet’s upper atmosphere is influenced by incoming sunlight. Because Jupiter receives only 4% of the sunlight that is received on Earth, astronomers predicted this region to be homogeneous in nature.

The Great Red Spot of Jupiter was observed by Webb’s Near-InfraRed Spectrograph (NIRSpec) in July 2022, using the instrument’s Integral Field Unit capabilities. The team’s Early Release Science observations sought to investigate if this region was in fact dull, and the region above the iconic Great Red Spot was targeted for Webb’s observations. The team was surprised to discover that the upper atmosphere hosts a variety of intricate structures, including dark arcs and bright spots, across the entire field of view.

You can read the published research paper here. The image to the right is figure 4 from that paper, with each panel showing different infrared wavelengths indicated by the different colors, and thus the complex structures and physical properties.

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Firefly to launch from Wallops instead of Cape Canaveral

9:18 am

The rocket startup Firefly announced yesterday that it has decided to change its east coast launch site for its Alpha rocket from Cape Canaveral in Florida to Wallops Island in Virginia, using the same pad there that Northrop Grumman’s Antares rocket uses.

The company said that it would use Pad 0A at the Mid-Atlantic Regional Spaceport (MARS) on Wallops Island for Alpha launches, starting as soon as 2025. The launch pad, built for the Antares rocket, will continue to be used for the revised Antares 330 Northrop Grumman is developing in collaboration with Firefly as well as the larger Medium Launch Vehicle (MLV) the companies are building.

The company says launching from Wallops, in addition to its existing pad at Vandenberg Space Force Base in California, will allow it to serve more customers. Wallops can support launches to lower inclination orbits than feasible from Vandenberg, which is best suited for sun-synchronous and other high-inclination orbits.

Because the revised Antares rocket will use a first stage built by Firefly (replacing a Ukrainian first stage no longer available due to Russia’s invasion), this change appears to make a great deal of sense. The revised pad will likely use comparable systems between both Antares and Alpha.

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Are Chang’e-6’s lunar samples on the way back to Earth?

9:30 am

In Friday’s June 21, 2024 quick links, changes to lunar orbit of China’s Chang’e-6 sample return spacecraft were detected by ham operators. As I noted, “It isn’t clear whether this was the previous orbit adjustment, a new one, or the burn that would send the sample return capsule back to Earth.”

According to Space News today, the spacecraft with the samples is on its way back to Earth, based on additional information detected by amateurs. China however has released no information on the status of the spacecraft.

Upon return to Earth, the reentry capsule is expected to touch down at Siziwang Banner, Inner Mongolia during an half-an-hour long window opening at 1:41 a.m. Eastern (0541 UTC) June 25. The information is according to airspace closure notices. CNSA has not openly published timings of mission events in advance.

Earlier reports (which I can’t find now) had said the return was tentatively scheduled for June 25, 2024, so this Space News report makes sense. The lack of information from China is par for the course.

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