Narrow-angle color image of the Earth is a part of the first ever "portrait" of the solar system taken by Voyager 1. NASA/JPL

Pale Blue Dot

Each day in class, we write for 10-15 minutes. Today I asked: Should billionaires like Musk and Branson spend their money on space flight/exploration? Most said yes, but for reasons like, “It’s their money,” or “We should explore space.” Only two of 45 students led the discussion somewhere else. Earlier today on a NPR show, Carolyn C. Porco, planetary scientist partly… Read more →