Science & Innovation

Green and blue hydrogen are made differently and have different emissions profiles. Here’s how the production methods actually compare.

Geothermal energy explained: how underground heat generates electricity and warms homes, where it works, and what to ask before you consider it.

How hydrogen fuel cells generate electricity, where they’re used today, and what determines whether they make sense.

A plain-language look at the physics inside a solar cell — from photons hitting silicon to usable electric current.