The Space Stuff thread


  1. Posts : 23,014
    Win 10 Home ♦♦♦19045.4239 (x64) [22H2]
       #1591

    Paul Black said:
    DART [ Double Asteroid Redirection Test ] Launch - Wednesday the 24-Nov-2021:


    > DART Launch Moves to Secondary Window
    > NASA’s DART Prepares for Launch in First Planetary Defense Test Mission

    More information and statistics will follow as they become available . . .


    Sort of like deflecting a semi by throwing a Volkswagen at it. Aka, stupid and a waste of money.


    I think it would be far easier, less expensive and much more effective to just use an regular rocket, filled with... water.
    But if they did that... all those people couldn't collect grant money from the govt.
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  2. Posts : 2,177
    Windows 10 Pro 64-bit v22H2
       #1592

    Ghot said:
    Sort of like deflecting a semi by throwing a Volkswagen at it. Aka, stupid and a waste of money.
    I think it would be far easier, less expensive and much more effective to just use an regular rocket, filled with... water.
    But if they did that... all those people couldn't collect grant money from the govt.
    The idea is not stupid. There are two viable methods to deflect an asteroid or comet:
    1. Kinetic where you impact the body with a mass from a spacecraft
    2. Use a spacecraft to place a rocket engine on the body

    The goal is to deflect the body's orbital path so it misses the Earth. The farther in advance of the impact the less the deflection has to be.

    The current mission is just to demonstrate if a desired deflection can be achieved with current technology. The science of it is well established so that is not in question at all.
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  3. Posts : 18,044
    Win 10 Pro 64-bit v1909 - Build 18363 Custom ISO Install
       #1593

    MisterEd said:
    The idea is not stupid. There are two viable methods to deflect an asteroid or comet:
    1. Kinetic where you impact the body with a mass from a spacecraft.
    2. Use a spacecraft to place a rocket engine on the body.

    The goal is to deflect the body's orbital path so it misses the Earth. The farther in advance of the impact the less the deflection has to be.

    The current mission is just to demonstrate if a desired deflection can be achieved with current technology. The science of it is well established so that is not in question at all.


    As far as I am concerned, this is a VERY IMPORTANT, if not CRITICAL, Scientific Mission. You NEVER know when it might actually be needed, and having first hand data available will be invaluable.

    NASA has progressed extraordinarily quickly over the last couple of years, and has extended their knowledge about Space and Space Travel [ Missions ] beyond what I am sure was even expected for them over the time period.
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  4. Posts : 23,014
    Win 10 Home ♦♦♦19045.4239 (x64) [22H2]
       #1594

    MisterEd said:
    The idea is not stupid. There are two viable methods to deflect an asteroid or comet:
    1. Kinetic where you impact the body with a mass from a spacecraft
    2. Use a spacecraft to place a rocket engine on the body

    The goal is to deflect the body's orbital path so it misses the Earth. The farther in advance of the impact the less the deflection has to be.

    The current mission is just to demonstrate if a desired deflection can be achieved with current technology. The science of it is well established so that is not in question at all.


    Water is 8.2 lbs/gallon. It makes a great impacter. It's the cheapest is $$/lb.
    We already have rockets that will go that far.
    This "DART" is just another example of a waste of tax payer money.
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  5. Posts : 2,177
    Windows 10 Pro 64-bit v22H2
       #1595

    Ghot said:
    Water is 8.2 lbs/gallon. It makes a great impacter. It's the cheapest is $$/lb.
    We already have rockets that will go that far.
    This "DART" is just another example of a waste of tax payer money.
    The DART is just a proof of concept. In theory it should be a simple task but in actuality it is much more complex. For example, we have to know the object's mass and the objects distribution of mass to calculate the center of mass. For best effect the projectile you throw at it has to hit the center of mass. We won't know how to do this until we perform a number of experiments. Its called proof of concept.

    You mean that we just wait until an asteroid or comet heads our way and hope we could stop it by throwing blocks of ice at it. At best we will have six months notice or worst a few weeks. We may only have one shot at it. If we fail we may have to join the dinosaurs. At least we may have a chance to stop an asteroid that comes at us but they didn't.

    Of course the object that killed the dinosaurs was about 6 miles in diameter. There is nothing we could do to stop one that big. Our best bet is to stop one that is a lot smaller. Even an asteroid 0.5 miles in diameter could cause a lot of damage.

    How large asteroids must be to destroy a city, state, country, or the planet
    Asteroids: How Big Meteorites Must Be to Cause Serious Damage on Earth
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  6. Posts : 18,044
    Win 10 Pro 64-bit v1909 - Build 18363 Custom ISO Install
       #1596

    @Ghot,

    I do NOT know why you are demeaning NASA's [ and their partners ] attempt to gain knowledge, experience, and physical data, for potentially avoiding a future cataclysmic event. It is NOT IF it is going to happen, it is WHEN WHEN it is going to happen. History proves this fact. It will at least give us as a Planet, a fighting chance of survival.
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  7. Posts : 23,014
    Win 10 Home ♦♦♦19045.4239 (x64) [22H2]
       #1597

    MisterEd said:
    The DART is just a proof of concept. In theory it should be a simple task but in actuality it is much more complex. For example, we have to know the object's mass and the objects distribution of mass to calculate the center of mass. For best effect the projectile you throw at it has to hit the center of mass. We won't know how to do this until we perform a number of experiments. Its called proof of concept.

    You mean that we just wait until an asteroid or comet heads our way and hope we could stop it by throwing blocks of ice at it. At best we will have six months notice or worst a few weeks. We may only have one shot at it. If we fail we may have to join the dinosaurs. At least we may have a chance to stop an asteroid that comes at us but they didn't.

    Of course the object that killed the dinosaurs was about 6 miles in diameter. There is nothing we could do to stop one that big. Our best bet is to stop one that is a lot smaller. Even an asteroid 0.5 miles in diameter could cause a lot of damage.

    How large asteroids must be to destroy a city, state, country, or the planet
    Asteroids: How Big Meteorites Must Be to Cause Serious Damage on Earth
    Paul Black said:
    @Ghot,

    I do NOT know why you are demeaning NASA's [ and their partners ] attempt to gain knowledge, experience, and physical data, for potentially avoiding a future cataclysmic event. It is NOT IF it is going to happen, it is WHEN WHEN it is going to happen. History proves this fact. It will at least give us as a Planet, a fighting chance of survival.


    I'm all for science and discovery. I just think we should be doing things like going to the moon, or Mars. at this time.
    We can play pool with asteroids at some other time.
    Maybe it would be smarter to play with asteroids from a base on Mars, anyhow.
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  8. Posts : 18,044
    Win 10 Pro 64-bit v1909 - Build 18363 Custom ISO Install
       #1598

    DART [ Double Asteroid Redirection Test ] Launch - Wednesday the 24-Nov-2021:

    The Space Stuff thread-dart_1.png

    > DART Launch Moves to Secondary Window
    > NASA’s DART Prepares for Launch in First Planetary Defense Test Mission

    The Space Stuff thread-dart_2.png

    UPDATE:- => Weather 90% Go for DART

    The Space Stuff thread-dart-1.jpg

    The Space Stuff thread-dart-2.jpg



    UPDATE:-

    > Double Asteroid Redirection Test (DART) Mission
    > NASA’s DART Spacecraft Secured In Payload Fairing, Flight Readiness Review Complete



    UPDATE:-

    The Space Stuff thread-dart-0.png

    DART is scheduled to Launch at 01:20 a.m. EST [ 06:20 a.m. GMT ] on Wednesday the 24-Nov-2021, on a SpaceX Falcon 9 Rocket from Vandenberg Space Force Base in California.





    Everything went smoothly, and DART is on its 11 month Mission [ journey ] to the smaller member of the Binary Asteroid System Didymos, and is expected to arrive in late September 2022.


    Last edited by Paul Black; 24 Nov 2021 at 05:45.
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  9. Posts : 18,044
    Win 10 Pro 64-bit v1909 - Build 18363 Custom ISO Install
       #1599

    Launch of the Russian “Prichal” Node Module to the ISS - Wednesday the 24-Nov-2021:

    The Space Stuff thread-prichal-russian-mission-2.jpg

    The Space Stuff thread-prichal-russian-mission-1.jpg

    Perhaps someone else can cover this as I am covering the DART Mission?



    UPDATE:-

    The Space Stuff thread-prichal-node-module-1.png

    Launch is scheduled at 08:06 a.m. EST [ 13:06 p.m. GMT ] on Wednesday the 24-Nov-2021.

    A new Russian, modified Progress Cargo Craft topped with the Prichal Docking Module, is scheduled to Launch atop a Russian Soyuz Rocket from Baikonur Cosmodrome in Kazakhstan on Wednesday the 24-Nov-2021 at 08:06 a.m. EST [ 13:06 p.m. GMT ]. NASA's Live coverage will begin at 07:45 a.m. EST [ 12:45 p.m. GMT ].

    Automatic Docking with Russia's Nauka Multipurpose Module at the ISS is expected on Friday the 26-Nov-2021 at 10:26 a.m. EST [ 15:26 p.m. GMT ].
    The Space Stuff thread-prichal-russian-mission-3.jpg



    The Launch was on time and went smoothly. Unfortunately, there was a problem with MOST of the LIVE broadcast pictures from Russia. Hopefully this will be corrected when it is uploaded to NASA TV & YouTube.

    Perhaps someone else can cover this as I am covering the DART Mission?



    NEXT EVENT:-

    The Space Stuff thread-prichal-node-module-3.png



    Prichal is planned to dock to the Nauka nadir port on Friday, November 26 at 15:26 UTC / 10:26 EST, using the automated Kurs rendezvous system.

    Following leak checks, hatch opening will be performed in the following days. The Progress M-UM propulsion segment is planned to be detached from Prichal on December 21. On January 19, a Russian spacewalk will be performed to connect cables between Nauka and Prichal.

    The first docking to Prichal is planned to take place on March 18, 2022, with the Soyuz MS-21 mission.

    The Space Stuff thread-prichal-russian-mission-4.jpg

    (All times Eastern U.S. time, which equates to UTC-5.)

    Nov. 26, Friday
    9:30 a.m. – Coverage of the rendezvous and docking of the Russian “Prichal” Node Module to the ISS. Docking scheduled at 10:26 a.m. [ 15:26 p.m. GMT ].



    Perhaps someone else can cover the rest of this

    Automatic Docking went smoothly without ANY problems.

    The Space Stuff thread-spacewalk-1.png


    Last edited by Paul Black; 26 Nov 2021 at 10:51.
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  10. Posts : 2,177
    Windows 10 Pro 64-bit v22H2
       #1600

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