On its 173rd day on Mars, Curiosity stumbled upon a metallic-looking, shiny protuberance on a rock. The protuberance seems different than the rock on which it sits and looks pretty smooth. It is, however, quite small — probably not taller than 0.5 cm.

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This footage was reportedly captured by a boy on a flight to Massachusetts, U.S. in late January 2013. The unidentified object in question is not the jetliner we see in the distance, but the white, cigar-shaped object that quickly zips past the window at 0:04.

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This bright, sphere-like object was observed near Arona, Italy on December 12, 2012. The eyewitness was taking her daughter to school when the object was observed, around 12:15pm. At first she thought it was the moon, but on closer inspection she noticed that it was moving and that it had flashing lights on its left side.

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Brian Mcphee captured this intriguing footage over city of Stirling, Scotland (population 33,710) on February 2, 2013. Reportedly, the bright, silver colored object was coming in from the east to suddenly change direction and head westward.

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