A new solar-electrolysis system uses a copper-doped catalyst to turn farm waste into hydrogen and valuable formate.

Researchers using China’s “artificial sun” fusion reactor have broken through a long-standing density barrier in fusion ...

The small, icy visitor now racing away from the inner solar system is not just another comet. It is an interstellar object, ...

The interstellar object 3I/ATLAS has turned a routine comet flyby into a genuine scientific puzzle, thanks to a remarkably ...

Earth is about to see three total solar eclipses in just under two years, with each successive path of totality moving west ...