Free Fall in a Vacuum Welcome to BFSU: › Forums › Volume One › Learning Progression “D”: Earth and Space Science › Lesson D-7. Gravity II: Rate of Fall; Weightlessness in Space and Distinction Between Mass and Weight › Free Fall in a Vacuum Tagged: Free fall, gravity, Vacuum This topic has 0 replies, 1 voice, and was last updated 4 years, 9 months ago by Lani. Viewing 0 reply threads Author Posts February 20, 2020 at 6:23 pm #8263 LaniParticipant This clip is from BBC: Brian Cox visits the world’s biggest vacuum | Human Universe – BBC Author Posts Viewing 0 reply threads You must be logged in to reply to this topic.