From surveillance balloons to metallic orbs, over the past few weeks it seems like bizarre objects are falling out the sky left, right and centre.

Scientists are able to debunk most of these instances, like how a blue spiral that appeared over Hawaii last month was actually just a SpaceX launch.

However, some of them still do not have a logical explanation to this day, including the apparent 'flying saucer' that flew over a school in Australia in 1966.

The silvery white webs that fell on the heads of local football fans from an egg-shaped craft in Italy in 1954 also remain a mystery.

MailOnline takes a closer look at the seven weirdest unidentified flying object - or UFO - sightings, that are still yet to be explained.

To read more, click here.