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Source: United States of America – Federal Government Departments (video statements)

Have you noticed two bright objects in the sky getting closer together with each passing night? It’s Jupiter and Saturn doing a planetary dance that will result in the Great Conjunction on Dec. 21. On that day, Jupiter and Saturn will be right next to each other in the sky — the closest they have appeared in nearly 400 years! Want to learn when and where to look up? Join our experts on #NASAScience Live Thursday, Dec. 17 at 3:00 p.m. EST. Submit your questions by using #askNASA.