Life in the Universe Credit Hours: 3 hours. The astronomical, chemical, and physical conditions for extraterrestrial life. The origins of terrestrial life. Search for extraterrestrial life and extraterrestrial intelligence. Strategies for communication with extraterrestrial intelligence. This course will be taught 95% or more online. Not offered on a regular basis. Duplicate Credit: Not open to students with credit in ASTR 1420 Course Type: Online Level: Undergraduate