After consulting with the CLEERS Advisory Committee and the DOE Advanced Engine Crosscut Team, we have decided to hold the 2021 CLEERS Workshop as a virtual event again this year.  The 2021 CLEERS Virtual Workshop will be held over 5 days on September 13-17, 2021 in a similar format as last year.   We will send updated information as it becomes available. For any questions related to the Workshop, send an email to the 2021 CLEERS Workshop Organizing Committee (