Complex sentence: Findings from XENON1T remained silent until May 18,2017, when the XENON Collaboration broke that silence with new, promising data from its first results based on 34 days of data-taking between November 2016 and January 2017.
Split into simpler sentences: Findings from XENON1T remained silent until May 18,2017, when the XENON Collaboration broke that silence with new, promising data. In May 2017, the collaboration reported first results based on 34 days of data-taking between November 2016 and January 2017.