Canadian scientists explain rare 'nocturnal sun' phenomenon

Canadian scientists have unravelled the mystery behind what the Romans called the "nocturnal sun".

by

    Canadian scientists have unravelled the mystery behind what the Romans called the "nocturnal sun".

    The event takes place when the sky is so bright during the night that books can be read.

    Scientists believe severe weather is behind the phenomenon, creating high energy waves in the upper atmosphere.

    Al Jazeera's Daniel Lak explains.


    YOU MIGHT ALSO LIKE

    How different voting systems work around the world

    How different voting systems work around the world

    Nearly two billion voters in 52 countries around the world will head to the polls this year to elect their leaders.

    How Moscow lost Riyadh in 1938

    How Moscow lost Riyadh in 1938

    Russian-Saudi relations could be very different today, if Stalin hadn't killed the Soviet ambassador to Saudi Arabia.

    The great plunder: Nepal's stolen treasures

    The great plunder: Nepal's stolen treasures

    How the art world's hunger for ancient artefacts is destroying a centuries-old culture. A journey across the Himalayas.