Stargazers were in for a treat as they turned their gaze towards the Moon Sunday night to witness a rare 'Blood Moon' or the total lunar eclipse, the longest since 2022, visible across Asia and swathes of Europe and Africa. When the Sun, Earth and Moon line up, the shadow cast by the planet on its satellite makes it appear an eerie, deep red colour that has astounded humans for millennia. According to NASA, lunar eclipses occur at the full moon phase. This rare celestial event offers a stunning opportunity to witness the shadow of Earth gracefully glide across the Moon, transforming it into a glowing coppery-red disc. The Moon appears red during lunar eclipses because the only sunlight reaching it is "reflected and scattered through the Earth's atmosphere", Ryan Milligan, an astrophysicist at Northern Ireland's Queen's University Belfast told AFP.