NASA's Curiosity rover has captured a photograph of what appears to be a doorway carved into the rock.
43-year-old Matt Doughty from Hertfordshire couldn't believe his eyes when he watched the footage back.
A residential doorbell camera in Virginia recently picked up the moment a fish plummeted from the sky.
The long-awaited report leaves the door open to the possibility that we are being visited by extraterrestrials.
Outdoor adventurer Mike Bodewitz has captured what he believes to be evidence of a real-life Bigfoot.
One forward-thinking company is planning to build and launch a rotating space hotel with artificial gravity.
Unsettling footage shows a mysterious, unidentified figure peering around a doorway in a woman's house.
An unexpected visitor of a furry, four-legged variety gave one family quite a surprise earlier this month.
Peculiar footage from India shows outdoor gym equipment moving on its own as police officers watch.
With most people remaining indoors, cryptozoological pursuits have also undergone some changes.
A ghostly costumed figure has been scaring residents into staying indoors in the Indian village of Odisha.
Forestry workers in Scotland had been felling trees when they came across a heavy iron door in the ground.
Renovation workers have uncovered a forgotten passageway in the UK's Houses of Parliament.
A doorbell cam in Derby, England captured the moment a meteor spectacularly exploded in the night sky.
A very strange house with no door or other means of access is to go on sale in England for a mere $130.
A glitched out video clip from a doorbell camera in Texas has been raising eyebrows on social media this week.
A suitably authentic looking ghost shop has opened its doors in one of England's most haunted cities.
Footage recorded inside a Long Island home earlier this month shows a ghostly shape entering through the door.
A homeowner and his family were forced to flee when the enormous cat simply walked in the front door.
From next year, the International Space Station will open its doors to private visitors and business ventures.