A Carl Sagan quote

December 23, 2007

I'm reading "The Varieties of Scientific Experience", which is Ann Druyan's edit of Carl Sagan's lectures for the Gifford Lectures on Natural Theology in 1985 at the University of Glasgow. (from p.20)

Some 5 or 6 or 7 billion years from now, the Sun will become a red giant star and will engulf the orbits of Mercury and Venus and probably the Earth. The Earth then would be inside the Sun, and some of the problems that face us on this particular day will appear, by comparison, modest.