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 to 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

You’re warped onto the home world of friendly aliens in some unknown part of the Galaxy. How would you describe Earth’s location in the universe to them?

Pulsar Map Tattoo

I would show them my pulsar map. Astronomer and astrophysicist Frank Drake designed the map, working with fellow astronomer Carl Sagan and artist and writer Linda Salzman Sagan. The pulsar map shows the location of our sun relative to known pulsars. This map was placed on the interstellar space probes Voyager 1 & 2 in 1977.

The map is slightly inaccurate because of a rounding error on one pulsar, but its better than nothing.

Whether or not to have a tattoo of it is debatable. A dog tag may be easier to carry.


The Magic About Pulsars
Discovered in 1967 by Northern Irish astrophysicist Jocelyn Bell Burnell, pulsars were described by Antony Hewish to be the remains of collapsed suns.

For reasons not entirely understood they emit pulses of radio waves (and like lighthouses sometimes visible light) with the accuracy of atomic clocks, staying active for billions of years. It has something to do with magnetic fields.


Frank Drake drew the pulsar map using 14 pulsars that were known in the early 1970’s. Today we know of many more pulsars but they are not as powerful and bright. Frank Drake’s original pencil-drawn pulsar map today lives in an old tomato box at home.

Frank Drake hand drawn original pulsar map that went to Outer Space.

Each pulsar is connected to the sun by a solid line. The length of the line represents the pulsar’s approximate relative distance from the sun.
Etched along each of the pulsar lines are vertical and horizontal dashes that represent a binary number that can be converted into a decimal.
When multiplied by a known measure of time, that number reveals the frequency of the pulsar—how fast it spins and flashes.

Successfully decoding the map would unambiguously pinpoint the sun’s position and the time frame of the spacecraft’s launch.

This is an article by the “Contact Project”.

We can be found on https://contactproject.org.

The Contact Project is also on reddit: https://reddit.com/r/contactproject


Reference:
How to Read a Pulsar Map
https://www.pbs.org/the-farthest/science/pulsar-map/

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