BBC News has published a video explainer on how viewers can spot the Sun's corona during a solar eclipse, aimed at those in the US and Canada watching the event. The corona, the Sun's outer atmosphere, becomes visible to the naked eye only during totality, when the Moon fully blocks the Sun's bright disc, offering a rare viewing opportunity tied to Nasa's eclipse coverage.

The piece is presented as a short video guide rather than a written report, with limited accompanying text. It links to further BBC coverage on where to see the eclipse and is filed under the "US & Canada" section, with related topics including Nasa and eclipses.