An instrument that will collect and test water on Mars is to launch on the 2018 ExoMars mission. If it works, it could provide water for future crewed missions
This year fossil fuel emissions may fall for the first time even as the global economy grows – but more carbon dioxide is entering the atmosphere than ever
A citizen science project is finding aurora borealis in skies of central Europe and much of the US, further south than satellite-based forecast models predict