How the researchers dropped antimatter Many of us have heard the story (which may or may not have actually happened) of the Italian astronomer Galileo's 16th-century experiment, in which he dropped ...

A centuries-old experiment shows the differences between classical and modern physics. Physicists use thought experiments like this to think about how objects move both on Earth and in the stars.

Leonardo da Vinci's centuries-old sketches reveal he may have understood key aspects of gravity long before Galileo, Newton and Einstein. A recent study from the California Institute of Technology ...

His experiment proved that despite the different size or weight of the objects he dropped, the pull of gravity on them is the same. Galileo Galilei from BBC Horrible Science.

The announcement this week that elusive gravitational waves have been detected by the LIGO experiment heralds a new era in astronomy that could be as important as Galileo's first use of the ...