Tom Narock, Evan B Goldstein , Christopher Aiden-Lee Jackson , Alodie Bubeck, Allison Enright, Jamie Ian Farquharson , Alfonso Fernandez, David Fernández-Blanco , Stéphanie Girardclos, Daniel Enrique Ibarra 

Preprints — scholarly papers that precede publication in a peer-reviewed journal — speed the delivery and accessibility of academic work and lead to faster reuse by the scientific community, as evidenced by rapid citations and social media discussions. In the past year, EarthArXiv has emerged as a community-led initiative devoted to open scholarly communication. EarthArXiv became the first preprint server for the Earth Sciences on October 23rd, 2017, during the 10th International Open Access Week when it began accepting preprints and also postprints — the non-typeset version of a published article — from all subdomains of Earth science and related domains of planetary science. In our first year, EarthArXiv accepted ~500 submissions which had a total of ~60,000 downloads — we are taking these milestones as an opportunity to discuss the growth and next steps for EarthArXiv, as well as encourage others to join us in this movement toward openness.