10.6084/m9.figshare.5353564.v1 Tim Lichtenberg Tim Lichtenberg Talk at Sheffield Astronomy, 9 August 2017 figshare 2017 planet formation star formation Planetary Science Stellar Astronomy and Planetary Systems Solar System, Solar Physics, Planets and Exoplanets 2017-08-29 08:26:36 Presentation https://figshare.com/articles/presentation/Talk_at_Sheffield_Astronomy_9_August_2017/5353564 Talk at Sheffield Astronomy, 9 August 2017