Falcon 9 landing anomaly explained 

Soo close, the approach wasn't the best but at the last minute! Legs deployed , stopped spinning and halted to a safe landing speed! Real quick needed to slip a rug underneath it !

@Defcon1. A flying carpet would have been nice. Catch it and carry it to LZ1. For many, this probably looks like a failure. I don't think it is. It's a huge success, testing the safety features in real life. Imagine the BFS with passengers on board coming back to land, some mechanical trouble causes it to make a water-landing and it sets down perfectly in the ocean. SpaceX has nailed that part. Can you imagine how safe I feel now to use the BFS on an intercontinental flight? They are capable to set the passengers safely down in case of an emergency landing.

I hadn't heard of this abnormality until I saw this video just now. I feel sorry for the Space X team that this happened but at the same time I am pleased the Stage went through corrective safety procedures to try to facilitate as normal a landing and shutdown as was possible. The work of those involved in the Space X program amazes me and I believe they all deserve a good pat-on-the-back for what they have achieved to date, as well as their ongoing & future brilliant achievements.

No, no @Tim don't feel sorry. That is a good thing. Seeing how the software handled itself under impossible circumstances and without any payload or people onboard is a great experience for SpaceX. Think of all the valuable data they have been able to collect in regard to safety procedures and also the BFS, which will come down in a similar fashion with people onboard. And yes, they deserve a good pat-on-the-back!

That told us almost nothing.

Hello, again😂

SwissSpace Greeting, fellow earthling and space nerd.

@@indigodragon0613 lol

Nope, it would have twisted on land-landing. Even just a little twist can have major affects when touching a solid surface. Twisting slowed just before it hit water, but was still there.

what's up That’s possible. The engines seemed to have considerably slowed the spinning though so it was stopping. I guess we will never know for sure, but your scenario is more likely.

Totally agreed. And it's not just that some systems worked properly when others failed, but the remaining systems have compensated the Malfunction. Must be very robust failsafe algorithms programmed in there.

@David Griffeth Falcon 9 water landing ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-LFdep0qCmYA.html

Elon has already tweeted about a possible fix - it looks like the hydraulic pump that moves the grin fins stalled (meaning couldn't maintain pressure in the lines that move the fins), which Elon said is all coming from one pump. They'll look at installing backup pumps and extra lines. And sure that might not be the full picture yet, but I love the speed at which SpaceX addresses issues! Brilliant company.

It coud be new way to landing. No need the Drone ship.... May be.

@@karubemanabu4341 If you look up Philip Bono's SSTO (Single-Stage-To-Orbit) spaceship designs (he was a McDonnell Douglas engineer who designed numerous SSTO vehicles, including one--SASSTO--that used Saturn S-IVB upper stage tankage, wedded to a circular aerospike rocket engine/actively-cooled base-first heat shield), he designed an emergency water-landing system for his passenger-carrying SSTO spaceships. In the event of an aborted ascent in which the vehicle couldn't return to a land landing, inflatable pontoons mounted in small housings on its landing legs would inflate at touchdown.

The public are swine; advertising is the rattling of a stick inside a swill-bucket. (C) George Orwell

@@user-lt2gh7ig6k The proper response to Orwell is, "It takes one to know one..."

Yahya, tell that to the guy out fishing...

@@DanielKolbin You're enjoying a number of things scientists figured out.

@@DanielKolbin You're telling us never to trust scientists over an Internet made possible by scientists? You're a fool and an ingrate.

Daniel Kolbin Series has been banned for trolling

SciNews lul

what did we miss Daniel? its all been deleted

best comment!!!! hans zimmer "organs!!!!!"

high probability they will use this one good test subject

You know what would be a good/bad idea? Let the booster intentionally explode and at that time the dragon starts to abort.

The DM-1 In Flight Abort is being used to also qualify the new COPV. This is the last of the early Block 5 boosters that still has the old COPV. If they reuse this one I bet it will be testing some radical new hardware idea.

@@PoeRacing this was a brand new booster. First time flying

Perfect use for it!

@Stratowind Excellent sarcasm.

Wasn't even close enough lol

@@earthsgeocentricimmovablef4650 Sorry, what? I don't speak scientifically illiterate... As an aside, though, why do flerfers always end their fact-free nonsense replies with "lol" when it is they that are being laughed at by people who understand science? It does strike me as amazing that people who deny science use science to "debunk" science (and by "debunk" I mean make clowns of themselves and reveal how little they actually understand about the world)? Is okay, though. The world will keep on spinning, whether flerfers believe it or not, and the smart people will keep dragging the sci-illiterates along into the future.

And at the same time the landing is fake I'm pretty sure they would be able to tell such a contradiction haha

lol that's why the falcon "died"

I was surprised because I looked like Sean Bean.

Yeah, I thought he worked for NASA.

He works at NASA, but this is a NASA mission supported by SpaceX's falcon 9

@@RaspberryRockOffGridCabin He's one of SpaceX's bosses

No, that worked fine, it landed the booster almost perfectly in water even though it had lost the grid fins. The hydraulics for the latter got messed up.

@@kimulvik4184 Husein Nashr was complimenting the computer (and SpaceX). Like Captain "Sully" Sullivan, who successfully landed the jetliner on the Hudson River with no loss of life after losing both engines, the Falcon 9's first stage did exactly what it was supposed to do in the event of a grid fins control system failure, landing in the water offshore. (All Falcon 9 first stage land landings are initially targeted to a point just offshore; only after the computer senses that all is well does it move the touchdown point to the landing zone.)

@@kimulvik4184 I believe, that was a reference to Chesley "Sully" Sullenberger, who successfully ditched an A320 on Hudson, saving lives of his passengers and crew (only few minor injuries).

@@kimulvik4184 you should delete your comment since you obviously don't know the reference...

Love it! Sully Mode

Actually, I think they need the grid fins to generate aerodynamic lift in order to reach the landing pad - they couldn't have landed it on actual land without them, because they couldn't reach that far.

😂👌

It isn't even a failed landing. Nothing to learn there. This was a failed reentry and I believe they already have changes in mind (i.e. redundant hydraulic pump).

Makes it to Mars, then crash lands

Not just to Mars, but mars and back

Happy to hear explanation. Don't be afraid to show failures live. True supporters have your back. We're with you,win,lose or draw. I think most will agree it was an overall win. Payload delivered.

They always reuse the grid fins. Last I checked there are only 8 titanium grid fins in existence. These grid fins will be inspected for structural damage and then attached to the SpaceX DM-1 booster, these fins were almost certainly onboard Es'hail 2, Bangubandhu-1 and the Falcon heavy test flight.

It literally just fell over into the water. It had reduced it's vertical travel to 0 mph by then. The only problems with reusing this booster are related to salt water exposure.

@@tjj300 Yes but in past boosters that fell into the water were destroyed from the tipping force or the waves afterwards. The only other booster that landed in water and survive post landing was GOVSAT-1 which landed in the water, tipped over but because they couldn't get it to vent, had to sink it.

Except the salt water destroys stuff and the falling over part is not something someone launching a 250 million dollar satellite is going to want to fly on next flight. And you are aware that the booster is 150 feet long, and 12 feet in diameter and weighs almost 20 tons empty?

Wasn't there something about SpaceX only being allowed to hire US Citizens?

von sauerkraut not actually, no. Liquid fueled rocketry was after all invented by an American. What the Nazi's did was shave years off the learning curve. It was a national security priority and was going to happen no matter what. Just would have taken longer. The myth of Nazi's putting men on the moon is defeated by the reality of hundreds of thousands of American engineers across the entire country who actually did.

PiDsMedia He has his green card. US permanent resident. It's legal.

Germans and rockets go together like peas and carrots 🥕

@@RealityIsTheNow Well, the V2 was the first liquid fueled rocket to go to space. And that was definitely not an American invention.

@bunnyfreakz Back then, rocket landed on airport ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-LEb_7e66rVM.html

Yes it does! Both the 1st and 2nd stages do have "flight termination" systems. I think Hans mentions this in a longer version of this video.

You are now free to swim about the ocean.

SpaceX is obligated by law not to make visible to the public some of the internal workings of their rockets. This why when the first stage lands then is recovered, the engines are covered to prevent the public from photographing up inside the nozzles. There are governments and rouge states (i.e. North Korea) that would love to learn how SpaceX rockets work. In the event of a rapid unexpected disassemble being broadcasted, some of this sensitive hardware could be exposed. Ultimately they did release the cut footage.

Just my guess, but if one of those grid fins was misaligned with the others & "twisted" the rushing air would act against it and cause the spin. The stage would want to react like a Spin Stabilized Rocket only back to front. Because it looks like the fins are independently controlled perhaps the remaining ones tried to compensate for the spin & maybe were able to bring it under some control just before touchdown. Again, it's just my wild guess.

They have to sanitize anomalies. Some of the things they do are classified.

Who livestreams the look today?