Need a really big mirror, like size of planet to start with. Another neat idea is to use the Sun as a gravitational lens. But you you would need it put it way

Need a really big mirror, like size of planet to start with. Another neat idea is to use the Sun as a gravitational lens. But you you would need it put it way past Pluto to get proper focus. So maybe another hundred years to get tech and resources to that point. https://www.space.com/earth-like-exoplanet-imaging-with-sun https://www.space.com/earth-like-exoplanet-imaging-with-sun