If you're okay with just a flyby of the Voyager probes though, then you can use a laser sail. Breakthrough Starshot[1] is aiming for 60,000 km/s of delta-v. Lig

If you're okay with just a flyby of the Voyager probes though, then you can use a laser sail. Breakthrough Starshot[1] is aiming for 60,000 km/s of delta-v. Lightsails have already been demonstrated several times in practice[2]. [1] https://en.wikipedia.org/wiki/Breakthrough_Starshot https://en.wikipedia.org/wiki/Breakthrough_Starshot [2] https://en.wikipedia.org/wiki/Solar_sail#Projects_operating_or_completed https://en.wikipedia.org/wiki/Solar_sail#Projects_operating_...