Mystery UFO 'comet' spotted at dusk in Thailand

Russian airspace re-opens following UFO sighting in St Petersburg

Russian airspace re-opens following UFO sighting in St Petersburg

It's a UFO! Hilarious moment mystery flying tent lands in family's back garden

UFO with fast-moving lights streaks across sky in China

Bizarre translucent UFO sparks fear as it hovers above homes in the Philippines

Spectacular UFO cloud formation forms over mountain in the Philippines

Bizarre UFO with 'metallic ring floating inside' spotted in Texas

Bizarre flashing lights in night sky spark UFO fears in Malaysia