Infrared & multispectral imaging, stereoscopic processing, and advanced space sensors are enabling a deeper understanding of the shape of the earth. This channel is dedicated to remote sensing the world and the celestial bodies, and revisits the assumptions behind our current understanding, asking questions that might not be popular. One of the biggest: Why does the surface of the earth appear flat? Are we realy living in a heliocentric system? Are the accepted distances in the solar system accurate? How does space-time distortions alter our perceived reality. Time to open minds and make progress. Join the ride!