* ASTR 0300b, Search for Extraterrestrial Life  Hector Arce

Introduction to the search for extraterrestrial life. Review of current knowledge on the origins and evolution of life on Earth; applications to the search for life elsewhere in the universe. Discussion of what makes a planet habitable, how common these worlds are in the universe, and how we might search for them. Survey of past, current, and future searches for extraterrestrial intelligence. Enrollment limited to first-year students.   WR, SC
TTh 1pm-2:15pm

* ASTR 0400a / PHYS 0400a, Expanding Ideas of Time and Space  Meg Urry

Discussions on astronomy, and the nature of time and space. Topics include the shape and contents of the universe, special and general relativity, dark and light matter, and dark energy. Observations and ideas fundamental to astronomers' current model of an expanding and accelerating four-dimensional universe. Enrollment limited to first-year students.   SC
TTh 1pm-2:15pm