[the] motions [of Mars] provide the only possible access to the hidden secrets of astronomy, without which we would remain forever ignorant of those secrets.


New Astronomy, Part II, 7 (p. 185), At The University Press. 1992


[the] motions [of Mars] provide the only possible access to the hidden secrets of astronomy, without which we would remain forever ignorant of those...

[the] motions [of Mars] provide the only possible access to the hidden secrets of astronomy, without which we would remain forever ignorant of those...

[the] motions [of Mars] provide the only possible access to the hidden secrets of astronomy, without which we would remain forever ignorant of those...

[the] motions [of Mars] provide the only possible access to the hidden secrets of astronomy, without which we would remain forever ignorant of those...