Many believe that the object is extraterrestrial in nature and that it even contains a message for humanity.
An Egyptologist has identified several previously unseen messages hidden on the 3,300-year-old carved stone pillar.
The latest search for evidence of alien life focused on looking for alien worlds that are sending messages to one another.
Investigators with the US Coast Guard have provided new details about the Titan sub disaster.
Back in the 1970s, this iconic signal was thought to be a candidate for the first ever message from extraterrestrials.
Instead of sending basic messages, what if we sent an AI capable of having a conversation with ET ?
Scientists have been listening out for alien messages for years, but perhaps we'd be better off not receiving anything at all.
Over 45 years ago, pilot Frederick Valentich vanished without a trace after encountering a UFO off the coast of Australia.
A rather unusual tourism campaign for Lexington, Kentucky has involved scientists sending a message into deep space.
A mysterious four-line poem thought to have a hidden meaning has been found in a bottle along the river.
Dan Dafforn had been working on his own house in Pembrokeshire, Wales when he made the discovery.
Astronomers looking for signs of alien life are listening out for radio pulses originating from the center of the Milky Way.
After four years of activity on the surface of Mars, NASA's InSight mission has finally come to an end.
Using quantum computers, the researchers simulated a working 'baby' wormhole without rupturing space and time.
If an intelligent extraterrestrial race suddenly sent us a message, what exactly would the human race say in response ?
Researchers have suggested that we may be listening out for the wrong type of extraterrestrial communications.
It's not a new idea, but should we really be broadcasting our existence to anyone who is listening ?
Plans to beam Earth's location out into space could have unintended consequences, an Oxford scientist has warned.
Scientists at JPL have been planning to send a new message into space for intelligent aliens to pick up.
Ken Webster and Debbie Oakes claim to have received numerous messages on their 80s BBC Micro.