Harvard University Department of Astronomy

The Cosmological Constant Future Universe with Lambda Basic Idea: If the universe expands forever, eventually we will enter dark ages where there hardly any radiation and most matter has decayed. With a cosmological constant we will have an era of inflation as well, before much of this happens. Scenarios Future of the universe with no Lambda eras: primordial, stelliferous, degenerate, black hole, dark Future with Lambda Scale for where lambda will have an effect When will we stop seeing things? which things What if not actually lambda but just quintessence? Unpredictability of what will happen given possible measurements Some references Home Syllabus References Lecture References Useful Links Contact Info Back to Harvard University Department of Astronomy Academics. Back to Harvard University Department of Astronomy Courses.