6-Year-Old's Space Greeting Still Traveling After 47 Years

A six-year-old boy sat down at a microphone in a Cornell University room in 1977 and answered a question most kids never face: what would you say to aliens?

Nick Sagan, son of astronomer Carl Sagan, spoke seven words that day. "Hello from the children of planet Earth" became the English greeting on NASA's Golden Record, attached to both Voyager spacecraft before they launched into deep space.

The moment wasn't planned with any ceremony. Carl Sagan led the committee deciding what went on the record, while his wife Linda organized the spoken greetings across 55 languages. They thought having a child's voice would be meaningful, so they put their son in front of a mic and asked what he'd want extraterrestrials to know.

Nick didn't prepare a script. He just said hello on behalf of Earth's kids, then probably went back to being six.

Voyager 1 launched September 5, 1977, and never stopped moving. In August 2012, it crossed into interstellar space, becoming the most distant human-made object in existence. Nick's greeting went along for the ride, traveling farther from home than any human voice ever has.

The distances become hard to picture. In roughly 40,000 years, Voyager 1 will pass within 1.6 light-years of a star called Gliese 445. The Golden Record isn't aimed at anyone specific, just drifting as a message in a bottle through the cosmic ocean.

Why This Inspires

Nick Sagan grew up to write science fiction, including episodes for Star Trek: Voyager. His career became about imagining futures while a sentence from his childhood kept racing ahead without him.

"I had no sense of the magnitude of it at the time," he later said. Six-year-olds don't think about interstellar distances or legacy. The weight of it arrived gradually as he aged and the spacecraft didn't stop.

He's been honest about carrying that moment. "It's been a challenge for the rest of my life to live up to that honor. It's always there in my subconscious."

There's something else too. "There's a possibility that a piece of me will exist long after I'm gone and the Earth ceases to exist. It's a kind of immortality," Nick said.

Every adult who worked on that record will eventually be gone, along with most of what we've built here. What's left drifting through space is a child's voice saying hello. An adult might have tried to summarize humanity's achievements or explain our worth, but the kid just offered a friendly greeting, and maybe that says everything.