Could the Voyager spaceprobe make contact with an extraterrestrial intelligence sooner or later, and could the aliens trace it back to Earth?

Artwork inspired by Linda Salzman Sagan’s design for the Pioneer plaque, which aimed to communicate with extraterrestrial intelligence, commissioned by NASA: click here view the original design

The Ocean of Time

Consider this: The cosmos is an ocean of time, vast and unfathomable. The future and the past may not be fixed shores but fluid horizons, ever-shifting. If time is a river, might there be civilizations advanced enough to navigate its currents? They could potentially voyage upstream against the flow and visit epochs long gone. Suppose such beings exist, they might step into our present, or even our yesterday, with technology that bends the fabric of spacetime itself. We can only speculate if extraterrestrial intelligence might be capable of such feats.

Messengers of Earth

Think of the Voyager probes, those celestial arks launched in 1977. They carry golden records engineered to last 5 billion years, etched with the sounds and stories of Earth. Drifting through the interstellar dark, they are destined to wander for millennia before brushing the icy fringes of the Oort Cloud, possibly to be found by extraterrestrial intelligences in the future.

Pioneers of the Unknown

And what of Pioneer 10 and 11, their plaques engraved with symbols and figures—a map to our tiny blue world? These messengers preceded Voyager by four years. They were charting a path through the unknown, potentially reaching minds skilled in decoding messages intended for extraterrestrial intelligences.

The Cosmic Recursion

Here we drift into a cosmic recursion—a loop of cause and consequence as enigmatic as time itself. Suppose it is not the distant future that answers our call, but the act of calling that creates the future. Could our probes, these fragile artifacts of hope, be both message and catalyst? A whisper that echoes backward through the aeons, compelling beings of tomorrow to seek the source of their own curiosity.

The Search for Answers

If a civilization unbound by time found Voyager or Pioneer adrift in the interstellar void, would they not use the pulsar map to trace its origin back? They could return to the blue-green world that cast it forth. And in doing so, might they not feel compelled to visit the time when it was launched? They might be drawn by the poetry of a planet daring to announce, “Here, we exist,” a statement echoing the hope of encountering extraterrestrial intelligences.

Unearthing Secrets

Imagine this: A civilization, millennia hence, unearths Voyager in the icy depths of the Oort Cloud. They decode its songs and its images of Earth’s shimmering biosphere, and wonder: Who were these beings? Did they survive their adolescence? Such reflections might prompt interaction.

Invitations to Explore

The probes, then, become not just messages but invitations. A handprint on the cave wall of spacetime, saying, “We are here. Come find us.” They serve as signals beckoning extraterrestrial intelligence to respond.

The Gift of Causality

By having declared our presence to the universe, we planted a seed in the garden of causality. Maybe a future civilization, emerging from the same evolutionary currents that shaped us, might trace their own lineage back to this moment. It was a moment when a fledgling species, trembling on the edge of self-destruction, chose instead to reach outward.

Sacred Relics?

To them, the Pioneers and Voyagers might be sacred relics, the genesis of their own yearning to explore. And so they return, pilgrims to their cradle, to ensure the message endures.

The Question of Solitude

And so we are left to wonder: Are we alone, or are we unknowingly surrounded by emissaries from tomorrow? In sending our songs and salutations into the dark, we cast a line not just across space, but through the infinite corridors of time. Who, or when, might one day tug the other end and reveal the existence of extraterrestrial intelligence?

A Silent Witness

Perhaps, even now, the answer is quietly orbiting the Sun or our planet—a silent witness to the audacity of a species. We dared to reach beyond our epoch and into the unknown.

Read more on:
The Sagan Paradox – The Contact Project
Notes about time travel – The Contact Project

1977: The Year We Made Contact?

The year 1977 was a remarkable time for those fascinated by the possibility of extraterrestrial life. A series of events, both earthbound and celestial, captivated the imagination of people around the world. These events sparked a renewed interest in the search for life beyond our planet.


It began on August 15, 1977, when a strong, narrowband radio signal was detected by a radio telescope at Ohio State University. Dubbed the “Wow!” signal, it remains one of the most intriguing examples of an unexplained signal in the Search for Extraterrestrial Intelligence (SETI).


Just five days later, on August 20, 1977, NASA launched the first Voyager space probe. It carried a Golden Record containing sounds and images of Earth, intended as a message to any intelligent life form that might encounter it.


As the year progressed, the United Nations Assembly debated the existence of UFOs. A proposal to study the phenomenon was presented on October 6, 1977, as reported by The New York Times. This marked a significant moment in the history of UFO research. It brought the topic into the mainstream and sparked a global conversation about the possibility of extraterrestrial life.


The release of Steven Spielberg’s movie “Close Encounters of the Third Kind” on November 16, 1977, further fueled the public’s fascination with UFOs and alien life. The film’s depiction of a peaceful encounter between humans and extraterrestrials resonated with audiences. It helped to shape the cultural narrative around the topic. It’s iconic 5-note melody by John Williams is famous to this day.


But perhaps the most bizarre and unexplained event of the year occurred on November 26, 1977, when a strange broadcast interrupted a news program on ITN, a British television network. At 5:10 p.m. GMT, a deep buzzing sound replaced the audio. This was followed by a distorted voice claiming to be Vrillon, a representative of the Ashtar Galactic Command. The voice delivered a message of peace and wisdom, stating,

“For many years, you have seen us as lights in the skies. We speak to you now in peace and wisdom, as we have done to your brothers and sisters all over this, your planet Earth.”

While the “authenticity” of this broadcast remains a topic of debate, it has become a fascinating footnote in the history of UFO research.

The broadcast itself may have been achieved by technological hacks. Nevertheless, its 1977 message is thought-provoking and still valid today:

It speaks about the need for humanity to come together in peace and harmony to avoid disaster. The message also discusses entering a new age of enlightenment, referred to as the “New Age of Aquarius.” The speaker warns about the presence of false prophets and guides who may exploit people’s energy and resources. The message encourages listeners to be aware of their choices, to protect themselves, and to use their imagination to create a better world.

A well-researched podcast about the Southern Television Broadcast interruption is found here:


Whether or not 1977 was truly a year of contact, it was undoubtedly a year that sparked a renewed interest in extraterrestrial life and intelligence. It continues to inspire scientific inquiry and popular fascination to this day.