This week’s question was asked by: Sydney Moore, third grade, Miller Elementary School. Teacher: Angela White. QUESTION: How is metal made? ANSWER: Everything is made of atoms. The atom is the ...

NASA is about to launch a spacecraft on a nearly six-year journey to a strange asteroid that, unlike most space rocks, seems largely to be made of metal. "This will be our first time visiting a world ...

Photovoltaic efficiency has come a long way over the decades, but there’s always room for improvement. A new study analyses how to make solar thermoelectric generators, or STEGs, more efficient by ...