The EverWonder Children's Museum in Newtown is holding a Grand Opening celebration today.  The facility offers STEM based exhibits and activities to promote creative learning in the science, technology , engineering and math fields.  The Museum is located on Pecks Lane in Newtown and a ribbon cutting ceremony is planned for 10am.  There will be free admission from 10am to 11am, followed by half-price admission until closing time at 5pm.  5th District Congresswoman Elizabeth Esty will be making a stop at the museum this afternoon.