The Mars Blueberry Astrobiology Dome

Our planetarium is called the Mars Blueberry Astrobiology Dome, here is why.

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December 20, 2025
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The Mars Blueberry Astrobiology Dome

Once upon a time, on the distant planet of Mars, in the vast, reddish, rocky landscape, a unique event occurred that changed our understanding of the universe. This event didn’t involve towering Martians or flying saucers but something much smaller, much more subtle: the discovery of “blueberries.”

Martian Blueberries Credit: NASA/JPL-Caltech/Cornell/USGS

The ‘blueberries,’ as the NASA Science Team affectionately named them, were not sweet, juicy fruits but tiny, spherical, iron-rich formations. They were discovered by an intrepid visitor from Earth, a robotic explorer named Opportunity, which landed on Mars in 2004. While carrying out its important mission of surveying and understanding the Martian terrain, Oppy stumbled upon these fascinating formations scattered over the Martian terrain like a blanket of blue pearls.

Spirit and Opportunity by the numbers. Credit: NASA

Now, these blueberries were not just special because of their unexpected beauty on the stark Martian landscape; they carried within them a tale older than humanity itself. You see, these little blueberries are concretions formed through a slow, meticulous process that happens in the presence of water. Yes, water! The elixir of life as we know it. On Earth, wherever there is water, there is life.

“Blueberries” embedded in layers of sedimentary rock. Credit: JPL-Caltech/Cornell/USGS

At the time, in 2004, their existence on Mars presented a tantalizing clue, whispering tales of a past where water, perhaps lots of it, flowed on Mars. Maybe rivers and seas splashed and murmured under Martian skies, just as they do on our home planet. It was as if the blueberries were inviting us, saying, “Look closer, there’s more to our red planet than meets the eye.” More than twenty years after this discovery, we have learned so much about Mars—this knowledge we want to share with your students.

Inspired by this discovery, back on Earth, a group of dedicated people decided to name their portable planetarium “The Mars Blueberry.” This classroom-size dome-like structure, filled with projections of countless stars and galaxies, was just like its namesake on Mars, a small but significant entity carrying within it vast, incredible stories of the cosmos.

Just like the Martian blueberries bridged the gap between Mars’s past and present, the planetarium, too, aims to bridge the gap between the cosmos and the curious minds exploring it. “The Mars Blueberry” is a place of knowledge where people can gather, learn, and share the incredible tales of our universe. It encapsulates the spirit of exploration, the opportunities we seek, and the thrill of discovery, honouring those Martian blueberries, which, in their own way, have expanded our understanding of the universe.

The Mars Blueberry at Ellesmere College

And so, “The Mars Blueberry” continues its mission on Earth, enlightening young minds about the cosmos’ mysteries, just as the Mars blueberries continue to unveil Mars’s secrets millions of kilometres away. And who knows? Perhaps one day, a young astronomer, their curiosity sparked under the dome of “The Mars Blueberry,” will journey to Mars, standing beside Opportunity, examining the very same Martian blueberries that gave their cherished planetarium its name.

Hari and Sam

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