Is it a bird, is it a plane, or could it be something else?
That was the question Alan Ferguson was asking after taking these pictures at Acacia Hills.
Mr Ferguson, 43, said he was taking pictures of the sky about two weeks ago, but when he downloaded the snaps he noticed a strange object flying among the clouds.
And Mr Ferguson is convinced it could be a sign that life exists beyond the Earth's limits.
"I have been seeing these weird and wonderful things flying around the place for years and no one believes me,'' he said.
Mr Ferguson said he was convinced the object was metallic because he said the sun could be seen reflecting off it.
He said for the past three years he had seen objects moving in the shape of an "N'' at great speed in the sky above his home.
"You picture the letter N in your head, that's the manoeuvre they can make in a split second,'' he said.
UFO spotting has been a regular occurrence in the Territory.
Last month residents at the tiny town of Marlinja, 730km south of Darwin, reported seeing four UFOs.
(Original headline: The truth is out there )
