Professor Eastwood has held fellowships from the National Endowment for the Humanities, the Institute for Advanced Study (Princeton), the National Science Foundation (NSF), and Clare Hall (University of Cambridge), along with further grants and short-erm fellowships from NSF, German Academic Exchange Service (DAAD), Max Planck Institute for History of Science (Berlin), the American Philosophical Society, and others. He is a correspdoning Member of the International Academy of the History of Science (Paris).