Geography of the Universe
Discuss the way one maps the universe, finding distances to the Sun, planets, stars in our galaxy, nearby galaxies, and to the most distant galaxies and clusters of galaxies. Starting with the distance to Mars in 1673, we have built, rung by rung, a ladder that now extends our measurements across the visible universe. At each step, the understanding of closer objects allows us to map their more remote counterparts.
Dates and locations to be announced.