Author: Sic

Here's the skinny: My twin went to do a roll to calibrate the onboard magnetometer, overdrew power and tripped software designed to automatically protect the spacecraft.

Voyager 2's power state is good and instruments are back on. Resuming science soon. https://t.co/4buDM32bap pic.twitter.com/4T856Lpxjm

— NASA Voyager (@NASAVoyager) January 29, 2020

A thermoradiative cell generates power by radiating heat to its surroundings. Researchers have explored using them to capture waste heat from engines, and are working to use them for other applications.

via Anti-solar cells: A photovoltaic cell that works at night.

https://www.youtube.com/watch?v=v4wKipsqN_Y