If you want to see one of the biggest, boldest recreations of the night sky, you might only have to book a trip to New Jersey in the near future. Jersey City's Liberty Science Center says it's building the largest planetarium in the Western hemisphere, the Jennifer Chalsty Planetarium, thanks to a $5 million donation from its namesake. The move will upgrade the Center's massive IMAX dome theater (88 feet across) so that it can double as a planetarium, adding digital projection in the process. If all goes according to plan, it should be ready sometime in December 2017.