Geothermal

A rare eruption in the Indian Ocean let researchers capture one of the clearest views yet of a seafloor spreading event

The park’s newest hydrothermal feature has an otherworldly milky texture from dissolved silica

Long confined to regions with volcanic activity, geothermal promises to become a much more versatile energy source thanks to new technologies

The potential of geothermal energy as a carbon-free power source is well known. Now companies such as Google are helping to unlock it

Satellites and other technologies are spurring a new revolution in volcanic activity monitoring

Household energy programs will need to influence how people use energy

A picturesque waterfall tells a heated geologic story