Galileo, Looking at the Sky Through His Telescope, Observed That

Multiple Choice

Galileo, looking at the sky through his telescope, observed that

A) most heavenly bodies, except for the moon, were luminous and insubstantial.
B) heavenly bodies were made of the same kind of material as the earth.
C) heavenly bodies were just as traditional Christian belief taught.
D ) it was impossible to deduce the nature of heavenly bodies through observation, and therefore, further astronomical research should focus on constructing mathematical formulas rather than experiments.