Neowise

NASA’s planet-hunter TESS catches a comet flying by on its first day on the job

The comet's tail seems to pivot due to solar wind as it moves across the field of view

Nasa's Neowise mission discovers a comet that may be visible from the first week of 2017

The comet is likely to be visible with a pair of binoculars, but scientists cannot be sure as the brightness of a comet is notoriously hard to estimate.