Energy & Green Tech

Device generates light from the cold night sky

An inexpensive thermoelectric device harnesses the cold of space without active heat input, generating electricity that powers an LED at night, researchers report September 12 in the journal Joule.

Consumer & Gadgets

The future of continuously rechargable batteries

University of Canterbury (UC) Associate Professor Aaron Marshall thinks so and is developing redox flow batteries as a viable energy storage system that will never wear.