believe that only twenty feet away the sun was shining with such
intensity upon the metal base as to make it too hot on the inside
to touch without gloves.

The first thing that attracted their attention was the size and
brilliance of Mars. Although this red planet was over forty
million miles from the earth when they started, they calculated
that it was less than thirty million miles from them now, or five
millions nearer than it had ever been to them before. This
reduction in distance, and the clearness of the void through
which they saw it, made it a splendid sight, its disk showing
clearly. From hour to hour its size and brightness increased,
till towards evening it looked like a small, full moon, the sun
shining squarely upon it. They calculated that on the course
they were moving they should pass about nine hundred thousand
miles to the right or behind it, since it was moving towards
their left. They were interested to see what effect the mass of
Mars would have on the Callisto, and saw here a chance of still
further increasing their speed. Notwithstanding its tremendous
rate, they expected to see the Callisto swerve from its straight
line and move towards Mars, whose orbital speed of nine hundred
miles a minute they thought would take it out of the Callisto's
way, so that no actual collision would occur even if their
air-ship were left to her own devices.

Towards evening they noticed through their glasses that several
apparently island peaks in the southern hemisphere, which was
turned towards them, became white, from which they concluded that
a snow-storm was in progress. The south polar region was also
markedly glaciated, though the icecap was not as extensive as