NASA unveils why the blood moon lights up the sky in red

A blood moon, a captivating celestial event, occurs during a total lunar eclipse when Earth's shadow casts a fiery red glow on the Moon. This crimson hue results from sunlight scattering through Earth's atmosphere, filtering out blue wavelengths. The next visible blood moon will be on September 7-8, 2025, observable across Asia, Australia, Europe, and Africa.