Journey to the center of Mars with the @NASAInsight team in a live chat on July 23 at 9am PT (noon ET/1600 UTC). InSight has detected hundreds of quakes since 2018 &amp; the events shed light on the crust, mantle &amp; core of the Red Planet. Ask ?s with #AskNASA https://t.co/XuUB5qJ9IW https://t.co/8hcikGuYdm