BEGIN:VCALENDAR VERSION:2.0 X-WR-CALNAME:EventsCalendar BEGIN:VEVENT CATEGORIES:News, Alumni News,News, Arts and Sciences News,News, Natural Sciences News DESCRIPTION:Free and open to the public, the lecture will be held at 7 p.m. on Thursday, April 9, in Cleary Family Auditorium in Kearney Hall. Life on Earth couldn’t have begun on an oxygen-rich planet, yet you couldn’t live without it. Those two facts, by themselves, tell us that Earth surface environments have changed markedly through time. Exploration of this issue shows that major events in Earth’s oxygen history reflect the interactions between physical and biological processes, and they go a long way toward explaining the timetable of evolution, as inferred from fossils and molecular clock estimates.71685 DTSTAMP:20260419T170941 DTSTART:20260409T190000 DTEND:20260409T210000 LOCATION: SUMMARY;LANGUAGE=en-us:Loss Lecture with Dr. Andrew Knoll UID:d5e3077fa34d2d7c50dcc67209184128@www.sjf.edu END:VEVENT END:VCALENDAR