A large chunk of Space X’s Falcon 9 rocket is expected to slam into the moon at 2:35 Wednesday morning. The Adirondack Sky Center and Observatory plans to livestream the collision and will also open its rooftop observatory for live public viewing. It's quite large and should leave a crater that's going to be about 30 to 50 meters across. Mark Staves, the Adirondack Sky Center and Observatory is going to be not only live streaming this, but it's going to be open for public viewing. The Adirondack Sky Center and Observatory says the piece that will impact the moon is part of the Falcon 9’s upper stage and is about the size of a five-story building.