How humans imagined and painted space in the 1930s

In 1939, artist Charles Bittinger imagined worlds to which we hadn’t yet travelled—sometimes with impressive accuracy.

Published 5 Jan 2019, 19:48 GMT

Late last year when NASA's New Horizons spacecraft went careening past an ancient chunk of rock more than four billion miles away, science celebrated a milestone—the flyby was the farthest visit to another world humans have made to date. The probe snapped numerous pictures of its target that are now making the long trek back to Earth.

But of course, no humans were actually there to document the spacecraft's big moment. So, what must that distant encounter have looked like up close? It’s the kind of question astronomers have been asking since they began studying the skies, and one that artists—with their brushes, paints, scientific knowledge, and imaginations—have for centuries been trying to help answer.

In July 1939, National Geographic published a story called “News of the Universe,” for which artist Charles Bittinger was commissioned to create a series of paintings that would help readers visualise outer space. At the time, telescopes were advanced enough to reveal details of the moon, but it would be another 30 years before a human would set foot there. Not even a satellite had been launched at the time the piece was published.

Despite the fact that humans hadn’t yet begun to explore outer space, the paintings illuminate how much scientists already understood. In the painting of Earth as seen from the moon, for example, the ridges on the moon’s craters are raised, which planetary scientist Bethany Ehlmann says is “very technically correct.” In another painting, Bittinger depicts the way light scatters into a spectrum of colours. It may seem out of place in the series, but “Bittinger felt it important to illustrate that, to make sure that readers understood the importance of the principle and how it related to the other paintings,” says National Geographic senior graphics editor Jason Treat.

"Light, here shown split into its spectrum of colours, has taught us almost all we know of the universe," reads the caption for this painting, which shows a prism breaking sunlight into a rainbow of hues.
Photograph by Painting by Charles Bittinger

According to a sidebar in the article, Bittinger “combined a fine sense of colour values and artistic composition with a painstaking effort to achieve scientific accuracy.”

That resonates with Los Angeles-based science illustrator Dana Berry. Though Berry uses 3-D software and Photoshop to depict astronomy rather than the paints and brushes Bittinger used, the intersection of where science meets creativity remains key.

“I wonder to what extent Bittinger grappled with the three-headed monster that everyone confronts when doing a scientific illustration,” Berry says. “Each image is the resolution of a conflict between pedagogy, believability, and drama.”

At NASA’s Jet Propulsion Lab in California, artist Julia Christensen is working on a project that will involve sending art aboard a spacecraft to Proxima b, an exoplanet 4.2 light-years from Earth. Bittinger’s paintings, she says, reflect the crucial dialogue between scientific research and the visual arts.

“Paintings such as these being published in 1939–at the beginning of World War II and just years before the United States would achieve its first crossing of the Kármán line into outer space–surely impacted the vision of scientists who went on to fulfill the goal of space travel.” (What is the Kármán line, and where is the edge of space?)

But what did Bittinger, who died in 1970, have to say about his assignment? “In planning and working out the paintings which accompany this article,” he says in the sidebar, “I came to feel more than ever that astronomy is the greatest monument to human intelligence, which has explored out into unimaginable depths of space with nothing more tangible than the fragile waves of light.”

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