Our 10-week REU program introduces students to the nature of research-oriented careers in physics and astronomy and fosters development of research-related skills and knowledge. Participants work with faculty mentors matched based on student interests. Weekly seminars, group meetings, and field trips (e.g. to LIGO Livingston) provide students with additional skills and experiences. Professional development covers a range of topics such as ethics and notebook keeping, patents/intellectual property, poster design and presentation, and application to graduate schools. Many events occur in conjunction with concurrent LSU summer undergraduate science programs across science and engineering. The program organizes an Astronomy Night outreach event with a public lecture and student-run physics