TIM PEAKE:Hi I'm Tim Peake. I'm an astronaut based here at the European Space Agency, in Germany. And from December 2015 to June 2016, I spent six months orbiting Earth on the International Space ...

Classical Mechanics:** Newton’s second law (F = ma) explains the relationship between force, mass, and acceleration. The law ...

Newton's Second Law states that force equals mass times acceleration. This can be investigated using a set-up like this one. You can use this set-up to investigate how changing two separate factors, ...

Researchers have proposed an idea that could explain Oumuamua's acceleration It's possibly from the outgassing of molecular hydrogen "It's exactly what should happen to interstellar comets," study ...