Measuring just 200 by 300 by 50 micrometers — smaller than a grain of salt and roughly the size of a single-celled paramecium ...

We put several robot vacuums from Roborock, Eufy, Dreame, and more through a series of mess tests to see which stood out.

Deepa Shivaram is a White House Correspondent at NPR. She joined NPR as a digital reporter in 2021, covering domestic and international breaking news, and reported on stories about climate change, ...