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Space

Europe's Venerable Ariane 5 Rocket Faces a Bittersweet Ending on Tuesday 75

An anonymous reader shares a report: The Ariane 5 rocket has had a long run, with nearly three decades of service launching satellites and spacecraft. Over that time, the iconic rocket, with a liquid hydrogen-fueled core stage and solid rocket boosters, has come to symbolize Europe's guaranteed access to space. But now, the road is coming to an end for the Ariane 5. As soon as Tuesday evening, the final Ariane 5 rocket will lift off from Kourou, French Guiana, carrying a French military communications satellite and a German communications satellite to geostationary transfer orbit. A 90-minute launch window opens at 5:30 pm ET (21:30 UTC). The launch will be webcast on ESA TV. And after this? Europe's space agency faces some difficult questions.
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Europe's Venerable Ariane 5 Rocket Faces a Bittersweet Ending on Tuesday

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  • Summary quality? (Score:5, Informative)

    by sonlas ( 10282912 ) on Monday July 03, 2023 @10:01AM (#63653322)

    The summary could have been a bit more worked on...

    Europe's space agency faces some difficult questions.

    Europe's space agency is not facing difficult questions. It is facing delays in the Ariane 6 launche (initial first flights were planned for 2023, but in May 2023 commercial partners said it would not be until early 2024). Which means they have to use the Falcon 9 SpaceX rocket in the meantime. The ironic part is that Ariane 6 is a modernization for Ariane 5, to make it more competitive with Falcon 9.

    • by XXongo ( 3986865 ) on Monday July 03, 2023 @10:28AM (#63653416) Homepage

      The summary could have been a bit more worked on...

      Europe's space agency faces some difficult questions.

      Europe's space agency is not facing difficult questions. It is facing delays in the Ariane 6 launche...

      and the difficult question is whether to cut their losses and move to reusable, so they can compete with SpaceX.

      After spending tens of billions on Ariane 6, this is a hard choice indeed, since it would mean spending another tens of billions developing a new launch vehicle.

      • I don't see that happening. SpaceX achieved their market position by pulling a Count Rugen and sucking away their employees' lives. That doesn't work in Europe.
      • by BigFire ( 13822 )

        You're under the impression that Arianespace is in the business of launching cargo into space. They serve 2 purpose: to underwrite French and Italian solid rocket production line for military while also having the secondary effect of attaching to commercial rocket for launch and to spread jobs across member states. The fact that they sometimes launch 7 times a year (their record) was a side benefit.

      • and the difficult question is whether to cut their losses and move to reusable, so they can compete with SpaceX.

        Typical American, or what?

        Which losses? They have no losses.

        They are on the way to reusable as far as I know: but develop it themselves.

        It is a fucking space AGENCY> . It is a (multi) government run project/agency. To develop technology and have its own space launch program.

        No one in Europe is for fuck sake canceling that and buy rockets from SpaceX - for the sake of just operating. We might bu

        • Sure, times have moved on since 10 - 15 years and perhaps we could invite SpaceX to join ESA and set up production facilities here. At the moment however this is not happening, no idea why.

          I can think of numerous reasons, but most importantly I think would be export controls, which basically every country has. Given most money spent on rocketry is for military use, it makes the most sense to operate in a country that has a big military budget.

          Second to that, good engineering talent is harder to come by in Europe. The best engineers from Europe always end up emigrating to the US anyways. The rest, e.g. you, are all that remain. So why settle for less?

          Also, given the way Europeans got really pi

          • The best engineers from Europe always end up emigrating to the US anyways.
            You are mixing up Europe with Asia.

            USA is not a very popular place to migrate to for an European.

    • by BigFire ( 13822 )

      Ariane 6 is modernized to compete with Falcon 9 circa 2014, 9 years ago when SpaceX haven't landed their first booster yet. It wasn't clear at that point SpaceX would be a serious contender for their business as at that time SpaceX is only capable of medium launch. They just want a cheaper version of rocket to Ariane 5 which was build to launch cancelled Hermes Spaceplane. Ariane 5 was just a bit overbuilt for just sending a satellite to GSO, but for sending a big and small satellites in pair, it was a

  • by WoodstockJeff ( 568111 ) on Monday July 03, 2023 @10:04AM (#63653330) Homepage

    Space X makes money only if they launch. So lack of competition did not help the Europeans "stay ahead".

    Would we have the new version 6 rocket if it had to compete for loads? Who knows?

    • by BigFire ( 13822 ) on Monday July 03, 2023 @11:05AM (#63653512)

      Ariane 6 have a captive market for their national security and prestige cargo. One such cargo is Euclid that was supposed to be launched by Ariane Space in French Guiana using Soyuz (with European guidance and flight termination system). This cannot be done without Roscosmos technicians. Thanks to Putin's NOT War in Ukraine, that fell through. No one else have the spare launch capacity to launch their telescope to Sun-Earth L2 in such short notice except SpaceX. They launch it over the weekend 6 months after signing the contract. This is the kind of spare launch capacity that no one else have in their back pocket.

  • by gweihir ( 88907 ) on Monday July 03, 2023 @10:10AM (#63653354)

    Where they blew up $800M of uninsured solar research satellites because of a really demented decision by management. Good times. I bet the accident analysis by the independent expert team is still good reading today and a lot of software developers could learn a thing or two.

    • Well, to be fair, the success odds of the first launch of any rocket system is pretty abysmal.

      If you have a payload on such a flight, it would be best to either insure it or make sure you can afford the not-unlikely loss. Better still might be to pick an already proven launch vehicle, and leave initial launches to hoisting things like sports cars.

    • by GuB-42 ( 2483988 ) on Monday July 03, 2023 @10:53AM (#63653488)

      The failure of Ariane 5 has been used as a case study for software developers. I studied it at school, and then again at my first job, both in the context of critical embedded software.

      It looks like software developers learned a thing or two as Ariane 5 ended up as one of the world's most reliable rockets.

      • by Geoffrey.landis ( 926948 ) on Monday July 03, 2023 @11:42AM (#63653616) Homepage

        First launch of a new vehicle is always risky-- the common wisdom is to expect a 50% chance of success on any first launch. (And that may be optimistic for new-space companies). And, every failure looks obvious in retrospect.

        SpaceX, for example, has a first-launch success record of one for three: failures on first launches of Falcon-1 and Starship; success on first launch of Falcon-9.

        (call it a 50% success rate if we consider Falcon Heavy a new vehicle and not an evolution of Falcon 9).

      • I remember talking to one of the guys on the A5 telemetry team – who were responsible for the first crash – when I talked to him, the launch had not yet happened. It was a hugely complex piece of software engineering. The pressure on the team's back – especially meeting deadlines – was intense and toxic. Some of it goes with the job, of course. After the failure, I am sure that many of the team felt awful and heartbroken. It's never nice to be the ones responsible for the failure
        • It's never nice to be the ones responsible for the failure of such a massive undertaking.
          Being "involved" does not make you "responsible".
          If their software process was ruined by meetings and deadlines, it is the managements responsibility.

          • This is an excellent point and I agree with you 100%. But it often doesn't *feel* that way. I don't know about you, but when I accidentally delete the final a hard drive of production data, I definitely feel responsible - even if senior management have me on a rush.
      • by gweihir ( 88907 )

        Excellent. That is the right way to do it. I already had finished my CS Master's at that time, but I remember printing the accident analysis something like two weeks later and reading it over lunch. Absolutely fascinating management failure.

    • by BigFire ( 13822 ) on Monday July 03, 2023 @11:07AM (#63653514)

      They were reusing Ariane 4 guidance program, and a part of the code that they didn't sanitized (and frankly wasn't needed at the time it kicked in) decided to turn the rocket around.

      • by gweihir ( 88907 )

        Actually, the problem was that "countdown zero" was very different for Ariane 4 and Ariane 5. And that is what caused the guidance modules to self-diagnose as faulty and switch themselves off. Both of them. Shortly after liftoff. And yes, that code-piece did nothing useful really, but the error handling was "obvious hardware error, lets go offline".

        Of course, the root-cause was an absolutely boneheaded decision by management to re-use the component without making sure the functionality needed had not change

    • It had nothing to do with software engineering. The official report said it was because they reused a smart part from an earlier rocket without reviewing its software operating specs. Turns out that the part detected acceleration that was "impossible" - according to its specs - and started dumping debug data on its output bus, exactly like it was designed to do.

      The software performed perfectly.

      • by gweihir ( 88907 )

        Actually, it had a lot to do with software engineering. You see, the guidance modules were designed to handle conditions like that as "obvious hardware failures" like software could not have faults. And the error handling was to switch the guidance module off without even checking how bad the situation was or whether the other one was still online. Unfortunately, an Ariane 5 that has lost both guidance modules is just essentially a bomb that has no clue where it is going.

        You may want to read that report aga

        • Thanx, that you finally linked the incident you are ranting about.
          As I for my part was thinking you meant a completely different inciden.

          How do you suppose the simpleton you are arguing with, know s you mean THIS incident?

          • by gweihir ( 88907 )

            Takes one simple search for "Ariane 5 disaster". But apparently that is beyond many people these days. I am still getting used to how incapable and at the same time highly arrogant many people have become. I probably have too many interactions with STEM Students that already have survived for quite a while.

            My apologies for that, you are right.

            • There were several Ariane disasters, were the reason was "faulty software".

              So: how should anyone have a clue about what you are talking if you speak over several posts in riddles?

              Or did you now insist that there was only on Ariane five disaster and that everyone should know about that? Hint: I don't count shit. I don't even know which Ariane version right now is the actual one.

  • They will spend less paying SpaceX to launch their satellites than they would paying RosCosmos or ArianeSpace. They can use that money to help them complete the development and deployment of Ariane 6.

    • True, but somewhat humiliating.

      • by La Gris ( 531858 )

        It is not so much about pride or humiliation anymore. it is about sovereignty and self capability to orbit any payload, including military without depending on foreign country outside the EU and private SpaceX largely funded and or abiding by foreign US interests.

  • They should have been working on a reusable launch system but sat on their hands.

    • Re:Sucks (Score:5, Informative)

      by Guspaz ( 556486 ) on Monday July 03, 2023 @01:54PM (#63654010)

      SpaceX announced their intention to make Falcon 9 re-usable in 2005. Everybody laughed at them, including Arianespace. SpaceX built prototypes intended to flight-test reusability in 2011 with Grasshopper. Everybody said they were wasting their time, including Arianespace. In early 2013, SpaceX began testing propulsive landing on full-up flights. In mid 2015, Arianspace was still dismissive, with their CEO saying that even though they expected SpaceX to succeed in first-stage recovery, they could still outcompete SpaceX. In late 2015, SpaceX successfully landed and recovered a first-stage booster. Over the following years, SpaceX would leverage the cost savings from reusability, ending up at roughly a third the cost of Ariane 5.

      Arianespace only started work on a partially reusable rocket in 2022, planned to enter service in the 2030s, at which point they'll potentially have a system competitive with the Falcon 9, which will have been rendered obsolete by the fully reusable and much cheaper Starship.

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