If we're to reach another star, chemical propulsion will not get us there in any reasonable time frame. We're going to need a different propulsion technology, and one of the most promising seems to be a solar sail. These giant reflective surfaces form the basis of many interstellar mission conc...

Source: [Phys.org](https://phys.org/news/2026-06-hidden-physics-complicating-interstellar-lightsails.html)

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