that powered it gradually faded out. For several months, *Opportunity* [hasn't been getting enough power](https://arstechnica.com/science/2018/06/massive-martian-dust-storm-has-put-opportunity-rover-in-a-low-power-sleep/) to maintain normal function, causing it to shift into a hibernation mode. Once it underwent this
50 results for arstechnica.com:
Coal is finally fading away. Good.
It's just a feature — Researcher finds logger, turned off by default, could be turned