Galileo's most important contribution to astronomy was his

What is the approximate chemical composition of the solar nebula?

Tides are caused by a differences in the gravitational force of the sun at different points on earth. differences in the gravitational force of the moon at different points on earth differences in earth’s gravitational field strength at different points on earth’s surfac fluctuations in the gravitational attraction between earth and the moon.

The force of gravitational attraction between the sun and venus could be increased by reduseing which of the followinga. the distance between the sun and venus b. the period of rotation of the sunc. the mass of the sun and venusd the speed of the orbit of venus