1. Mick West

    How to Verify that the Sun is a Distant Sphere, with Binoculars & Sunspots

    From past the orbit of Mars, the solar system looks a bit like the above. Earth is just a speck, not even visible here (at the end of the blue line). The sun is much larger than the earth, yet still seems small and far away. Its light shines equally in all directions. Can we actually verify...