Dr Kirsten Banks thought she had mastered the art of making astrophysics accessible. Then a child asked about the sauce.
During her first year of a science degree at the University of New South Wales, Banks secured a role as an astronomy guide at Sydney Observatory. The job involved leading groups of twenty through telescopes, a 3D theatre, and a planetarium. Her signature moment came with the Hubble Ultra Deep Field image. She would describe how the telescope stared at a patch of sky no larger than a grain of sand held at arm’s length for eleven days. Then she would zoom in, revealing thousands of galaxies. “Those spiky objects are stars,” she would say. “Everything else you see in this image, every blob, every smudge, every tiny speck … is a galaxy.” The gasps were reliable.
When the clouds roll in
Sydney weather does not always cooperate. On one overcast evening, the telescopes were useless for stargazing. Banks improvised, pointing out the “stars” on the Australian flag atop the Harbour Bridge before ushering the group downstairs to the 3D theatre. Conversation drifted, as it often does, to black holes.
She covered the classics: the discovery of Cygnus X-1, the origin of the term “black hole,” and her favourite phenomenon — spaghettification. She explained the mechanics with a human protagonist. Fall feet-first toward the event horizon, she told them, and gravity pulls your feet harder than your head. The differential stretches you into a long, thin strand. Spaghettification.
It was a vivid, visceral image. She considered it family-friendly.
The question that stopped the room
A hand shot up. An eight-year-old girl. Banks braced for a profound query about event horizons or information paradoxes.
“So would the blood be the sauce?”
The group giggled. Banks froze. The metaphor she had constructed — a human body stretching into a pasta shape — had a biological reality she had overlooked. Blood vessels, organs, circulation. The sauce was not a metaphorical addition; it was an anatomical inevitability.
“That night taught me two very important lessons,” Banks writes in her new book, *Lost in Space: Curiously Cosmic Stories*. “First, explain spaghettification in the context of stars falling toward a black hole, not humans. Second, curiosity comes in many forms.”
Reframing the narrative
The pivot was immediate. In subsequent tours, Banks swapped the human for a star. A stellar object succumbing to tidal forces offers the same physics — the same violent stretching — without the gore. The science remains intact; the nightmare fuel is removed.
The second lesson has proven more enduring. Science communication often prizes the “smart” question. The one that probes the edge of known physics. But the girl’s question — morbid, literal, slightly absurd — cut through the jargon. It forced a reassessment of audience, analogy, and assumption.
“Ask the question that seems silly,” Banks urges. “Ask the question that will help you understand the world better. And who knows, maybe it’ll be a question that someone else will remember years later.”
Why it Matters
Banks’s anecdote is a masterclass in the gap between expert intent and audience reception. It illustrates how even seasoned communicators can default to anthropocentric analogies that obscure as much as they illuminate. In an era where public trust in science hinges on clarity, the reminder that a child’s “silly” question can expose a flaw in a professional’s framework is vital. The best outreach does not just transmit facts; it listens for the unexpected interpretation and adapts.
