Sitting under the dome of At-Bristol’s new 3D planetarium, I stared up at what looks like the night sky. There are a few stars I recognised but mostly there was familiar orange glow of light pollution circling the horizon. The presenter leading the show asked us all to close our eyes for a moment.
“Now,” she said. “Open your eyes.”
In front of my eyes was a sky covered in stars, the Milky Way streaking across the centre. For many people who lived in and around Bristol, this was the first true representation of a dark sky they had ever seen.
“There was one lady who came out of that show who was buying lots of astronomy books because she wanted to find out more,” said Lee Pullen, Planetarium Manager when I interviewed him later. “She confessed that she’d found the experience so emotional that she’d wept tears of joy in the show. Often people are just amazed. They had no idea there was so much out there to be able to find.”
The show in question was Summer Stargazing, a seasonal show highlighting the landmarks of the night sky at this time of year. We flew to distant stars, searched the sky for various asterisms like Cygnus and Lyra, though the highlight for me was taking a swooping journey through the rings of Saturn. The sight of ice particles jumping out of the screen all around me is something I won’t be forgetting.
An environmental perspective
The planetarium shows don’t just look up at the sky. Their environmental show, Blue Marvel, casts its gaze back downwards to our own fragile planet. Here the 3D really came into its own. The Earth became the canvas on which to paint humanities impact in a very tangible way. Deforestation was projected across the globe and oil consumption per capita jumped out from every country*. But perhaps the most striking moment was when the sea levels were made to rise 20m, flooding the world, including the place where I live.
The show was an excellent way to show the strain we humans are placing on the world, but also rather depressing. There was little indication of what we could do to prevent what seemed like the inevitable destiny of our civilisation.
Bristol is open to technology
But it is projects like this, beyond its main use as a planetarium, that the dome was upgraded for. The funding for the project came in part from the Bristol Is Open project.
“The Bristol Is Open Network is a high speed network that runs all around under Bristol,” says Seamus Foley, the planetarium’s media production officer. As part of this network the Planetarium goes by the moniker ‘the At-Bristol Data Dome’. “The idea is that in the future we might be able to stream 4K frames down the pipe in real time so you can have a supercomputer processing visualisations of molecular simulations, for example, and it turns up in the planetarium.”
The planetarium aims to be more than just a fancy screen for showing astronomy films, and the team are currently working at ways to make the dome earn its keep, including some intriguing ideas such as putting on music concerts and introducing interactivity.
“One of the experiments that we’ve done is dropping a buggy onto scans of the Tycho Crater and driving around it like a computer game,” says Foley. “We want to make it more than just a cinema experience. We want it to be an interactive and engaging, let people can take part and take control of the experience.”
Whatever comes next, I’m sure it will put the planetarium to its best use. I look forward to finding out what At-Bristol has in store.
* – Luxemburg was the real surprise here. It practically hit you in the head with it’s oil consumption the spike was so huge. Apparently it’s due to people nipping across the border to fill up on cheap petrol.
For those of you with a family At-Bristol is open most days between 10am-5pm on weekdays, and 10am – 6pm on weekends. They also regularly puts on After Hours and Planetarium Nights to allow adults to use the planetarium and have a look round.