All talks are free and begin at 7 p.m. at Centennial Hall on the UA campus.

Feb. 1

Cosmology: Making Sense of the Universe.

Guy Consolmagno S.J., astronomer and curator of meteorites, Vatican Observatory, Castel Gandolfo, Vatican City State.

Feb. 8

Origin of the Universe: The Big Bang.

Christopher D. Impey, Distinguished Professor, Astronomy/Steward Observatory, University of Arizona.

Feb. 15

Dark Matter, Dark Energy and Inflation: The Big Mysteries of Cosmology.

Michael S. Turner, professor, Kavli Institute for Cosmological Physics, University of Chicago.

Feb. 22

Astronomical Alchemy: The Origin of the Elements.

Philip A. Pinto, associate professor, astronomy/Steward Observatory, UA.

March 1

Origins of Black Holes: Gravity at Its Extreme.

Feryal Özel, associate professor, astronomy/Steward Observatory, UA.

March 8

The Oldest Question: Is There Life Beyond Earth?

Carolyn Porco, Cassini Imaging Team Leader, CICLOPS/Space Science Institute, Boulder, Colo.

For more information, call 621-4090 or go online to: