The original title of this was What Does 239,000 Miles Look Like?, but as with just about everything I write, it sort of evolved from being a simple question to wondering about the sheer scale of distances involved in our solar system. It is often…
This image of Earth is one of 60 frames taken by the Voyager 1 spacecraft on February 14th, 1990 from a distance of more than 6 billion kilometers (4 billion miles) and about 32 degrees above the ecliptic plane. In the image the Earth is…
As a fraction of the lifespan of the universe as measured from the beginning to the evaporation of the last black hole, life as we know it is only possible for one-thousandth of a billion billion billionth, billion billion billionth, billion billion billionth, of a…
