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    The milky way and luminescent algae. ...

    The milky way and luminescent algae.

    Bioluminescent algae and the milky way rising over South Arm, Tasmania...I believe the ISS is also present just to the right above the clouds! [OC] : space
    ...
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    The upper tank dome burst. A closeup picture...

    The upper tank dome burst. A closeup picture after the event.

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    BTW the motors driving the aerosurfaces and the...

    BTW the motors driving the aerosurfaces and the batteries driving the motors are off the shelf Tesla products.

    Note that this is the second stage and does not have the cargo section yet, only the...
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    A photo of SN8 with one aerosurface already...

    A photo of SN8 with one aerosurface already installed.

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    Operations at Boca Chica continue at breakneck speed. Presently they are building the orbital launch pad for the full Starship...
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    Next will be Starship SN8. This one is intended...

    Next will be Starship SN8. This one is intended to do the first flight to higher altitude, 20km, then fall down in a horizontal position, stabilized by 4 aero surfaces, until it turns vertical for...
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    A nice pop of a test tank last night. They have...

    A nice pop of a test tank last night. They have tested their build SN7.1 to intentional destruction. We are now waiting and hoping that Elon Musk will reveal the pressure that was reached when it...
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    NASA is taking this quite seriously....

    NASA is taking this quite seriously. Administrator Jim Bridenstine is talking about possible probes to send to Mars.

    There is speculation that microbes were brought to Venus by Soviet Venera...
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    I like th aurora.

    I like th aurora.
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    It is the same engine, the Raptor. Maybe with...

    It is the same engine, the Raptor. Maybe with some minor modifications. The difference is the big nozzle. It makes it much more efficient in vacuum.
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    Vacuum engines are big. On the left the sea level...

    Vacuum engines are big. On the left the sea level version, on the right the newly released first picture of a vac engine. They will probably go even bigger in the future. Just for some gain of...
  11. :rofl::rofl::rofl:

    :rofl::rofl::rofl:
  12. Yes, it is totally clear. They send the signal to...

    Yes, it is totally clear. They send the signal to the opposition. Open your mouth and you are dead. Making it obvious by using an agent only they have access to. And then deny it. People like you lap...
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    Very many doubt it is achievable. Especially the...

    Very many doubt it is achievable. Especially the convincing the FAA part.
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    That's ok. They only need 1 million people who...

    That's ok. They only need 1 million people who want to go to Mars. Though if things go well, there will also be flights LA-Shanghai and other routes available. Business class price for 30 minutes...
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    The dents disappear the moment it is pressurized....

    The dents disappear the moment it is pressurized. They reappear when the pressure is gone. They are still working on the welding methods and parameters. But steel this thin will always have some...
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    The one on the photo is 301 stainless steel. For...

    The one on the photo is 301 stainless steel. For the latest build they switched to 304L. All off the shelf stuff the steel mills produce as standard products. Pretty much the stuff they make...
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    Factoid. The tank walls of the new SpaceX...

    Factoid.

    The tank walls of the new SpaceX Starship is 4mm. If you scale up a beer can to that size its wall thickness would be near 40mm. 8-10 times that.

    Actually the calculation was done with...
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    SpaceX has launched the argentinian satellite...

    SpaceX has launched the argentinian satellite SAOCOM-1B. This flight has a lot of extraordinary events.

    It is flight 100 of the Falcon rocket. A lot more than the total flights of ULA. Approaching...
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    More like incredulity

    More like incredulity
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    An update on the Mars missions. The probes are...

    An update on the Mars missions. The probes are all on their way and quite close together on interplanetary scale. Still huge distances.

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    All 4 probes are in the magenta square.

    Some...
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    The confinement has ended. The result is...

    The confinement has ended. The result is inconclusive. None of the isolated modules has registered unusual losses. So either the loss was due to false measurements or it is the result of adding up a...
  22. Does he have any friends? Even the Chinese?

    Does he have any friends? Even the Chinese?
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    A beautiful video of catching a fairing half...

    A beautiful video of catching a fairing half after coming down from space. It almost looks like bad CGI, too smooth to be real. But it is real.

    Ms. Tree Catches a Fairing Half - YouTube

    It is...
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    It is a very minor issue, unlike the hole in a...

    It is a very minor issue, unlike the hole in a Soyuz. It has actually been known for over a year but they were too busy to do anything about it. Right now they have found the time. They close all...
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    I don't fully agree, ............ yet. Accidents...

    I don't fully agree, ............ yet. Accidents do happen.

    If the electorate however gets fooled a second time, with things like QAnon and the shehanigans with absentee voting, I will agree.
  26. Germany has sent an ambulance plane and a team of...

    Germany has sent an ambulance plane and a team of doctors. Let's see if they let him go.
  27. Thread: The Twins

    by Takeovers
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    Congratulations too. And many more returns.

    Congratulations too. And many more returns.
  28. I don't think getting the short very early is a...

    I don't think getting the short very early is a concern. It will go to selected groups like medical staff first, then maybe teachers. Once available to the general public I would take it. I am not...
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    There are plans for a number of other...

    There are plans for a number of other constellations.

    For sure China is planning one.

    Amazon has very recently received a FCC license for their constellation called Kuiper. They plan to invest...
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    Some info on Starlink SpaceX is designing and...

    Some info on Starlink

    SpaceX is designing and deploying a constellation of satellites to bring internet access to every location on Earth. They have been working on it for over 2 years now and...
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    Dragon recovery vs. Jules Verne. 55748

    Dragon recovery vs. Jules Verne.

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    BTW this was the fifth flight of this Falcon 9...

    BTW this was the fifth flight of this Falcon 9 booster and it s fifth successful landing. So it can be used for the sixth time again. Waiting for the fairings to come down and hopefully be caught in...
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    Next launch of almost 60 sats for the Starlink...

    Next launch of almost 60 sats for the Starlink constellation in a few minutes.


    Starlink Mission - YouTube

    Will write a little more about it soon. The Kessler syndrome is a real risk though...
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    A nice video of a news conference with the 2...

    A nice video of a news conference with the 2 astronauts of the DM-2 mission and with Jim Bridenstine and Elon Musk.

    A lot of praise for SpaceX. They said on a test mission like this a number of...
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    Try it yourself. It is easy with a software like...

    Try it yourself. It is easy with a software like Irfanview. That's what I used.

    I am lazy. Others have drawn a vertical line then counted pixels and did some math. The method I used is a lot...
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    I used this photo with the sea in the background...

    I used this photo with the sea in the background to determine the angle of SN5 after landing. It is 2.7

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    No I had only a short trip to New York and...

    No I had only a short trip to New York and Washington DC. Visited the Smithsonian, very impressive but a long time ago.

    I had booked a flight to Brownsville to see that mad construction and launch...
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    A nice size comparison. SpaceShuttle on the...

    A nice size comparison.

    SpaceShuttle on the left. Starship SN5 as flown today. The full Starship on the right. The upcoming SN8 test vehicle will be that size, maybe a month from now.

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    ...
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    They use only oxygen and methane as fuel, nothing...

    They use only oxygen and methane as fuel, nothing else. Maybe nitrogen or argon to spin up the engines. Important consideration is that they don't use anything they can not source on Mars. Nitrogen...
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    First flight of Starship, 150m up and a little...

    First flight of Starship, 150m up and a little sideways to the landing pad. In this video you don't get how massive this thing is. The little box on top as a ballast is 22t by itself, 2 massive rolls...
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    So that it can be easily reached from Baikonur....

    So that it can be easily reached from Baikonur. Also in this inclination it covers a lot of the Earth surface. An even higher inclination would cover more of the Earth but begin to reach into polar...
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    They show the groundtrack of Dragon sometimes....

    They show the groundtrack of Dragon sometimes. The orange part indicates the deorbit burn that gets Dragon down into the atmosphere for landing. Interesting that the deorbit burn happens when Dragon...
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    I have not. I guess there are more expressions I...

    I have not. I guess there are more expressions I have never heard of.
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    Coverage was supposed to begin about now but has...

    Coverage was supposed to begin about now but has not yet. But actual splashdown of the capsule is expected in about 7 hours from now.
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    I am german. So doff is not completely native...

    I am german.

    So doff is not completely native to space suits only.
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    There is a risk of a leak and losing pressure on...

    There is a risk of a leak and losing pressure on undocking, so they wear the full closed spacesuit. They even take it off completely during cruise before reentry. For reentry I expect they will wear...
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    The first manned mission by NASA to the ISS after...

    The first manned mission by NASA to the ISS after the end of the Spaceshuttle is ending. The Dragon capsule has departed from the ISS last night. Splashdown near Pensacola, Florida in about 5 hours....
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    Starship SN5 had a successful static fire today....

    Starship SN5 had a successful static fire today. A photo of the engine firing from a SpaceX drone flying overhead.

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    https://twitter.com/elonmusk/status/1288935356310552576/photo/1
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    Very similar. They all go for mostly lowest...

    Very similar. They all go for mostly lowest energy flight trajectories. Though Perseverance flight was planned in a way that it would always arrive at Mars at the same day and time independent on...
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    It is still the plan. But be clear about it....

    It is still the plan. But be clear about it. That's an aspirational goal. It may well slip 2, maybe 4 years. But they made another step on the way today. SN5, the fifth Starship prototype had a...
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