Gravity doesn’t discriminate. An experiment in orbit has confirmed, with precision a hundred times greater than previous efforts, that everything falls the same way under the influence of gravity. The ...

Source: NOVA: "Galileo's Battle for the Heavens" This resource can be found on the NOVA: "Galileo's Battle for the Heavens" Web site. The motion of objects fascinated Galileo throughout his life. When ...

Experiments 1 and 2 dealt with ones that Galileo could have done and with a couple of thought experiments. This section deals with an experiment similar to one we know Galileo conducted. Trying to ...

Add Yahoo as a preferred source to see more of our stories on Google. Galileo, holding two balls, about to perform his legendary experiment. Hulton Archive/Stringer via Getty Images If you drop a ...

One of the most counter-intuitive notions in physics is that all objects fall at the same rate, regardless of mass, aka the equivalence principle. This was memorably illustrated in 1971 by NASA Apollo ...