If Earth were located at Alpha Centauri A, which is a star system approximately 4.37 light-years away from us, and assuming we had the same technology as we have now, it would be extremely challenging to send a probe to Proxima B.
The main obstacle is the vast distance involved. Even with our current technology, the fastest spacecraft we have launched, such as the Parker Solar Probe and the Voyager spacecraft, travel at speeds of around 17-70 kilometers per second (km/s). At this speed, it would take tens of thousands of years to reach Alpha Centauri.
Additionally, Proxima B, an exoplanet orbiting Proxima Centauri, is located even closer to Alpha Centauri A. However, it is still estimated to be around 4.24 light-years away from Earth. Traveling such a tremendous distance would require either significantly faster spacecraft or a completely different approach to space travel.
Presently, our technology does not allow us to achieve the necessary speeds for interstellar travel. However, scientists and researchers are actively exploring concepts like solar sails, laser propulsion, and other advanced propulsion systems that could potentially enable faster interstellar travel in the future.
It's worth noting that projects like Breakthrough Starshot, backed by organizations such as the Breakthrough Initiatives, are aiming to develop technologies capable of reaching nearby star systems within a human lifetime. While the realization of such projects is highly complex and faces numerous technical challenges, they represent ongoing efforts to explore the possibilities of interstellar travel.