On the morning of 6 October a rare sighting of a green heron in the Lost Valley in Cornwall was recorded by Heligan's wildlife team.
Crop circle researcher Andrew Russell, who is investigating the bizarre sighting on behalf of the officer, described the moment his sighting was made.
For years, it was a sort of journalistic sport for newspapers and magazines to send reporters to new Hampshire in hopes of a sighting.
The first-ever sighting of bright, instead of dark, dust-devil tracks on Earth could help decipher how these funny features form on Mars.
The unusual sighting of the horizontal rainbow was captured by Ukranian snapper Anton Jankovoy - using a camera set up with a large aperture to 'soak up' as much light as possible.
When is the first sighting of the crescent moon if you're on Mars?
Yet suddenly a huge stag is shot and there's no sighting for three weeks.
