Every now and again footage emerges and rattles even the biggest alien skeptics.

One person who managed to capture pretty eerie footage is pilot Jorge A. Arteaga, whose video recorded during a flight has been called the 'best UFO footage ever' - and has also been found to be 100 per cent authentic.

Arteaga was travelling through the skies above Antioquia, Colombia, when he spotted a strange object hurtling through the sky.

Captured in brought daylight, the mysterious, square-like object shoots out of the clouds and past Arteaga's cockpit in a matter of seconds.

He was able to quickly grab his camera and record the object - which appeared to be light in colour and pointed at one end - as it flew towards him before quickly speeding off.

Arteaga would later claim that he and his co-pilot had spotted the item floating in the air between the cities of Medellín and Santa Fe, before it drastically picked up speed and beelined towards them.

The pair had originally wanted to follow the UFO, but later abandoned the search after it suddenly began to hurtle towards them.