There is a new (2020) interesting "sun diver solar sail" proposal which could get all the way to Voyager 1 in two to three years. Article: https://www.universe

There is a new (2020) interesting "sun diver solar sail" proposal which could get all the way to Voyager 1 in two to three years. Article: https://www.universetoday.com/148241/want-the-fastest-solar-sail-drop-it-into-the-sun-first/ https://www.universetoday.com/148241/want-the-fastest-solar-... Paper: https://arxiv.org/pdf/2009.12659.pdf https://arxiv.org/pdf/2009.12659.pdf Interview with paper’s author: https://www.youtube.com/watch?v=W-E83lC-eN0 https://www.youtube.com/watch?v=W-E83lC-eN0