We have a new study out now that directly addresses this issue using current, NASA space probes and travel times. The minimum travel time is 90,000 earth years with some travel times closer to 1 million years and much, much longer. ""A pair of researchers, one with the Max Planck Institute for Astronomy, the other with the Jet Propulsion Laboratory at CIT, has found a way to estimate how long it will take already launched space vehicles to arrive at other star systems.", Calculating the time it will take spacecraft to find their way to other star systems
I have always wondered why we haven't (that I am aware of) developed a retransmission setup for probes sent into deep space? Does anyone know of any projects working towards this goal?Of course another big problem with sending a probe a couple of light years distance to the nearest stars is how would we send back any data that the probe acquires at that distance. Based on existing radio or laser communication technology you'd need a pretty powerful radio or laser transmitter on the probe to send back any data, which it seems to me would rule out the recently proposed concept of laser propelled probes with a mass of about 1 gram! https://www.space.com/29950-lasers-power-tiny-interstellar-spacecraft.html
Please provide verifiable proof of that claim or rescind it.Has anybody every thought of using some of Nicholas Tesla technologies? Then again a lot of his papers were gobbled up by the government and locked away.
HAARP deals with near vacuum above 43 miles, while all of Earth’s weather occurs within the first 7 miles. At 43 miles the molecules are spread thin and create a plasma, which is what HAARP energizes to facilitate the propagation of microwaves at that altitude.Although I don't think they totally locked it away and have used some of it such as with the case in the HAARP technology and earthquake machines.
Please provide verifiable proof of that claim or rescind it.
HAARP deals with near vacuum above 43 miles, while all of Earth’s weather occurs within the first 7 miles. At 43 miles the molecules are spread thin and create a plasma, which is what HAARP energizes to facilitate the propagation of microwaves at that altitude.
There is also the minor matter of confining the requisite amount of antimatter. Currently, we can contain an amount roughly the same mass as a single bacterium. The amount needed for the 1/10 C vessel you mentioned is approximately 1/5 the mass of the probe plus it's hydrogen fuel. That's It's on the order of ten thousand tonnes. Roughly 100,000,000 years production at currently technology levels. Current confinement times are on the order of a second. for the voyage, it would need to be on the order of a century at least.Back in the early '90's ...
The only difficulty for such a design is, apparently, simply generating enough antimatter fuel! ....
Speed up and Slow Down are both simple Delta V functions. For a trip to another solar system, you have to be able to both speed up at the beginning and slow down at the destination. Stars are similar to planets that way. Moving about in the 'target' system is minor compared to the delta V required for the trip.What may have gone over many peoples' heads is not how quickly you can speed up, but how quickly you can slow down prior to arrival.
I have always wondered why we haven't (that I am aware of) developed a retransmission setup for probes sent into deep space? Does anyone know of any projects working towards this goal?