Luca Urlando is now the second-fastest American in history behind Michael Phelps in the 200m butterfly after crushing his ...

A spacecraft traveling at one-tenth of the speed of light could shave the trip down to a quick 40 years. Future engineers could use nuclear power to achieve that, says Scott Bailey, an engineer at ...

Ancient humans living in what is now Ukraine 400,000 years ago may have practised or taught tool-making techniques using ...