MIT's Haystack Observatory in Westford, Massachusetts, offers a summer internship program. It is an NSF-sponsored, paid six- to eight-week internship for teachers in the area, with a stipend of $1000/week. They invite all Massachusetts high school teachers to apply; they think it is an excellent opportunity for physics, engineering, programming, and other STEM educators.
https://www.haystack.mit.edu/edu/ret/index.html
Please email info@haystack.mit.edu with any questions.