Our Universe in a Supercomputer Carnegie Observatories astrophysicist Thomas J. Cox will discuss how supercomputers are being used to address outstanding questions about the origin and evolution of galaxies, including our very own Milky Way. Huntington Library, Art Collections and Botanical Gardens, 1151 Oxford Road, San Marino. 7:30 p.m. Free. (626) 405-2100. http://www.huntington.org.
Lauryn Hill The artist, who lately has been tacking a sassy prefix of "Ms" on to her name, almost threatened to lose her mantle of adventurous, impossibly soulful R&B after erratic public behavior. Now she's touring again, and all signs point to a welcome comeback, especially as a half-dozen younger neo-soul sirens have diluted her original take. Club Nokia, 800 W. Olympic Blvd., L.A. 9 p.m. $55-$90. http://www.clubnokia.com.
Kid Cudi The spaced-out MC, frequent Kanye West collaborator and self-proclaimed lonely stoner comes to Hollywood for a night of introspective rhyming and brooding beats. The genre-bending artist, who reportedly has a rock project in the works called Wizard, will be joined by Chip Tha Ripper. Hollywood Palladium, 6215 W. Sunset Blvd., L.A. 8 p.m. $42.50. (323) 962-7600. http://www.livenation.com.
Where Is Where? Hollywood usually uses split screen for speedy montages, but Finnish filmmaker Eija-Liisa Ahtila deploys it here to give many competing facets of truth to a tale of a French boy murdered during the Algerian War. The screening also includes some of the director's early shorts. REDCAT, 631 W. 2nd St., L.A. 8:30 p.m. $9. http://www.redcat.org.