United by a desire to combat racism and implicit racial bias in STEM (Science, Technology, Engineering and Mathematics) fields, four leading Black scientists and researchers addressed those concerns in a candid Reddit #AskMeAnything (AMA) session yesterday (September 29).

Drs. Shirley Malcolm, Ed Smith, Avery D. Posey, Jr. and Caleph B. Wilson answered more than three dozen questions pertaining to users’ experiences with bias. The AMA preceded Science Magazine’s publication of “Doing Science While Black,” an article by Dr. Smith that describes experiences like being mistaken for a delivery person when starting at a lab.

We’ve embedded a portion of the discussion below. See the full AMA here.