Can We Harness Black Holes for Faster Flybys?

  • Thread starter Dr Wu
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In summary, the conversation discusses the possibility of tapping into the rotational energy of a charged black hole through the Blandford-Znajek process. This would involve using the black hole's revolving field-lines to accelerate an unmanned probe during a close flyby. The question is raised whether this concept would vary with the mass of the object, with smaller particles potentially being affected more than larger objects due to the black hole's gravitational pull. Additionally, it is suggested that this process could also apply to other celestial bodies with high magnetic flux, such as neutron stars and magnetars.
  • #1
Dr Wu
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With regards to the Blandford-Znajek process (about which I've only recently become aware), would be possible, at least in theory, to tap into the rotational energy of a charged black hole, this by using its revolving field-lines as a kind of 'magnetic assist' to increase the acceleration of, say, an unmanned probe making a close flyby? Or is this completely potty?
 
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  • #2
I would like to know if the physics behind this would vary with object mass. I think smaller particles would be greatly affected by this more than larger objects (Because black hole).
 
  • #3
Moreover, it would be interesting to know if the above also applies to other celestial bodies with a high magnetic flux - neutron stars and magnetars especially.
 

1. What is a "Magnetic Assist" Flyby?

A "Magnetic Assist" Flyby is a maneuver used by spacecraft to gain speed and change direction by utilizing the magnetic fields of a planet or other celestial body. It involves carefully calculating the trajectory of the spacecraft to pass close enough to the body to interact with its magnetic field, resulting in a boost in speed and a change in direction.

2. How does a "Magnetic Assist" Flyby work?

During a "Magnetic Assist" Flyby, the spacecraft's trajectory is carefully calculated to bring it close to the planet or celestial body at a specific angle and speed. As the spacecraft passes through the magnetic field, it experiences a force that can either speed it up or slow it down, depending on the direction of the magnetic field. This force can also be used to change the spacecraft's direction.

3. What are the advantages of using a "Magnetic Assist" Flyby?

The main advantage of using a "Magnetic Assist" Flyby is that it allows spacecraft to conserve fuel and energy. By utilizing the magnetic field of a planet or celestial body, the spacecraft can gain speed and change direction without using its own propulsion systems. This can extend the lifespan of the spacecraft and allow it to travel further distances.

4. How accurate do the calculations have to be for a successful "Magnetic Assist" Flyby?

The calculations for a "Magnetic Assist" Flyby must be extremely precise for it to be successful. Even a small error in trajectory or speed can result in the spacecraft missing the intended target or not gaining enough speed. This is why extensive planning and calculations are done before attempting a "Magnetic Assist" Flyby.

5. Has a "Magnetic Assist" Flyby been used in any space missions?

Yes, "Magnetic Assist" Flybys have been used in numerous space missions, including the Cassini spacecraft's flybys of Jupiter and Saturn, and the New Horizons spacecraft's flyby of Jupiter. They have also been used in missions to study comets and asteroids, and in interstellar missions such as Voyager 1 and 2.

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