Since NASA’s Mars 2020 Perseverance rover touched down at Jezero Crater Feb. 18, mission controllers have made substantial progress as they prepare the rover for the unpaved road ahead. Mission team members from NASA’s Jet Propulsion Laboratory in Southern California will discuss mission “firsts” achieved so far and those to come in a media teleconference at 3:30 p.m. EST (12:30 p.m. PST) Friday, March 5.The teleconference audio and accompanying visuals will stream live on the NASA JPL YouTube channel.Discussing the rover’s progress will be:Robert Hogg, Perseverance deputy mission manager, JPLAnais Zarifian, Perseverance mobility test bed engineer, JPLKatie Stack Morgan, Perseverance deputy project scientist, JPLMembers of the media and public may ask questions on social media during the teleconference using #CountdownToMars.