Complex sentence: Lakdawalla is a science popularizer on various social media platforms, interacting with space professionals and enthusiasts on Facebook, Google+ and Twitter, and has appeared on NPR, BBC, and other media outlets discussing planetary science and space exploration.
Split into simpler sentences: Lakdawalla is a science popularizer on various social media platforms, interacting with space professionals and enthusiasts on Facebook, Google+, and Twitter. She has appeared on NPR, BBC, and other media outlets discussing planetary science and space exploration.