From colliding galaxies to supermassive black holes, we take a look at some of the strangest sights in the universe

GLOBAL EYE

From strange lights in the sky to rocks that spontaneously glide across the ground, the mysteries scientists are trying to finally crack

GLOBAL EYE

Astonishingly, earthquakes shake the US state of California almost 9,000 times a year, on average – that’s about once every hour. California’s official nickname is the Golden State, harking back to th

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