The Kansas City Star reports that the gift from the Burns & McDonnell Foundation is to be announced Friday. The donation is the largest investment in Science City since it opened in 1999.
Union Station Chairman Mike Haverty said the gift will significantly improve Science City and be a catalyst for continuing enhancements.
Union Station has struggled for years, but ended 2010 with an operational surplus for the first time.
The gift from Burns & McDonnell will include $400,000 to fund new exhibits in Science City with a technology, engineering or math focus.