A Probe to Alpha Centauri in a Reasonable Amount of Time

The scientific issue is how to send a probe to Alpha Centauri with a velocity that approaches the speed of light.
Scientists have never accelerated a probe along a relativistic trajectory, which differs from a classical trajectory. Data that a probe had successfully traveled along such a calculated trajectory would in itself be tremendously valuable.

The theory is that there is a dust cloud around the Alpha Centauri system, just as there are dust clouds around the sun and the star Fomalhaut (or Formalhaut). This theory is soundly based on the Theory of Gravity. Massive objects like the three stars in the Alpha Centauri system will strongly attract the small particles that create a dust ring like that around Fomalhaut. The dust ring may vary in density, but it must exist relative to the space between stars. That space, deep between stars, has comparatively little matter because of gravity.

The sun's dust cloud is called the Kuiper Belt. Since the sun and Fomalhaut have dust rings, and because of the Theory of Gravity, it is safe to conclude that Alpha Centauri must have a dust ring.

As the probe moves through space toward Alpha Centauri, it will displace other matter, creating the signal perturbations. It will further create X-Ray signals. Custom-built instrumentation that employs either photographic or X-Ray astronomy techniques can detect the probe as it moves through the dust cloud.

The general idea is to put the path of the probe as it approaches the Alpha Centauri system "under the microscope" so to speak - with every possible instrument physicists and astronomers believe might be able to detect signals created by the probe. By calculating the probe's relativistic trajectory, observers on Earth can predict where the probe will be at a given time. By looking for signals with a variety of means, the probe -or a data pattern that reflects the perturbation in the star's dust ring - can be detected. In other words, even if the probe itself is too small to detect, its effects on the dust ring will be noticeable. The signal will be something like the wake of a small boat or the trail of a distant jet. Even though the boat or jet may not be visible, the tracks are.

It is critical to remember that a probe of ten grams moving at relativistic speeds has enormous energy.

The real value is that it would be the first experiment to accelerate a probe to relativistic speeds - that technology applies to later relativistic speed probes that apply similar technology. Further, it would arrive in the vicinity of Alpha Centauri within five to ten years.

The general idea is to strip the probe of all unnecessary weight in order to achieve a first: acceleration of a space probe to relativistic speeds.

Certainly, if signaling instrumentation can be included, then that is all the better. The point is that instrumentation is not necessary to successfully send a probe the interstellar distance and confirm that it has actually made the trip.