Mystery over bright green fireball that lit up night sky

• A bright green fireball accompanied by a loud bang has been witnessed across Queensland and New South Wales, Australia, puzzling astronomers.
• While it coincided with the Lyrid meteor shower, experts say the fireball was unrelated due to its trajectory.
• The fireball, brighter than the full moon, likely resulted from a space rock, possibly an asteroid or comet, entering the Earth's atmosphere at high speed.
• It likely exploded about 30km above ground, causing the loud bang, and while fragments may have reached Earth, they would be small and difficult to find, experts say.
• Scientists are encouraging witnesses to report their sightings to the International Meteor Organisation to help determine the space rock's origin.

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Astronomers perplexed by loud bang and green flash over Australian skies