Nice Australian picture. Just a single frame of many, taken at a 1/20th sec to show.........? A faint trail ending in a burst of light?
NASA would like your help to decide what you are seeing.
Is it a laser, a firework, a flashlight, a small meteor, an exploding street lamp, an insect?
Nobody is quite sure. But NASA states that the picture is genuine, and not faked.
I thought it would be an interesting problem to participate in our own 'online discussion'.
Later, Amaranth as moderator could cobble together the best ideas, and posting under Science a Gogo,...get us some kudos, even poach some new members from APOD, for us?
For the Picture http://antwrp.gsfc.nasa.gov/apod/ap041207.html

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"You will never find a real Human being - Even in a mirror." ....Mike Kremer.