Southwest Harbor Library, Southwest Harbor, Maine 

Acadia Night Sky Festival, Bar Harbor ME

Nantucket Maria Mitchell Association, Nantucket MA

Cornell University, Ithaca NY

Mount Wilson Observatory near Pasadena, CA

Lubawa, Poland

Institute for the History of Science, Warsaw, Poland

American Physical Society April Meeting, Columbus OH

Yale University, New Haven CT

University of Florida, Gainesville FL

Wentworth Institute of Technology, Boston, MA

Goddard Arts Bernie Wohl Center, New York NY

Arnold Arboretum, Harvard University, Cambridge MA

Smithsonian Libraries, Washington, D.C.

NYC Dept. of Education, Customs House

Adler Planetarium, Chicago, Illinois

The Ivy Bookshop, Baltimore, Maryland

Cosmos Club, Washington, D.C.

Quail Ridge Books, Raleigh, North Carolina

Hudson Library and Historical Society, Hudson, Ohio

Cuyahoga County Public Library, South Euclid, Ohio

Science Teachers Association of New York State (STANYS) Conference, Convention Center, Rochester, New York 

Chicago Humanities Festival, Chicago, Illinois

Griffith Observatory, Los Angeles, California

Mount Wilson Observatory, Pasadena, California

New York City College of Technology, Brooklyn, New York

Stevens Institute of Technology, Hoboken, New Jersey

Linda Hall Library of Science, Technology and Engineering, Kansas City, Missouri

Orr Room, Hastings Public Library, Hastings-on-Hudson, New York