In celebration of the 2023 Year of Open Science, NASA’s new scientific information policy and the associated Transform to Open Science (TOPS) mission, and to mark the publication of CERN’s first comprehensive Open Science Policy, the two organizations are hosting a week-long event entitled “Accelerating the Adoption of Open Science”, from July 10th-14th at CERN in Geneva, Switzerland. The overall goal of the event is to engage a range of relevant stakeholders in the physical sciences to actively exchange experiences, ideas, and expertise toward promoting open science policies and practices. Specifically, the event will aim to put the diverse range of attendees on a clearer path towards developing action plans on open science for their respective institutions.