Some articles on hemisphere, dark hemisphere:
... surmised that Iapetus has a bright hemisphere and a dark hemisphere, and that it is tidally locked, always keeping the same face towards Saturn ... This means that the bright hemisphere is visible from Earth when Iapetus is on the western side of Saturn, and that the dark hemisphere is visible when Iapetus is on the eastern side ... The dark hemisphere was later named Cassini Regio in his honour ...
Famous quotes containing the words hemisphere and/or dark:
“Rome, the city of visible history, where the past of a whole hemisphere seems moving in funeral procession with strange ancestral images and trophies gathered from afar.”
—George Eliot [Mary Ann (or Marian)
“While the white man keeps the impetus of his own proud, onward march, the dark races will yield and serve, perforce. But let the white man once have a misgiving about his own leadership, and the dark races will at once attack him, to pull him down into the old gulfs.”
—D.H. (David Herbert)