Lawrence Krauss is an American theoretical physicist, cosmologist, and popular science author. He is known for his contributions to the fields of cosmology and fundamental physics, particularly in areas such as dark energy and the early universe. Krauss has held academic positions at several institutions, including Arizona State University, where he was a professor in the School of Earth and Space Exploration and the Physics Department. In addition to his research, Krauss is also recognized for his efforts in science communication.
Articles by others on the same topic
Lawrence Krauss and Brian Chaboyer used the ages of globular clusters to test cosmological models. Their analysis combined cluster distances and stellar evolution calculations to obtain a lower bound on the age of the cosmos.
The logical comparison is simple: the cosmos must be older than the stars it contains, with additional time allowed for their formation. Combining this clock with an expansion rate constrains the cosmic equation of state and matter content. Their numerical bounds depended on the adopted stellar inputs, formation history and cosmological assumptions.[ref]
New Globular Cluster Age Estimates and Constraints on the Cosmic Equation of State and The Matter Density of the Universe by Lawrence M. Krauss and Brian Chaboyer. Abstract: revised ages, minimum cosmic age and conditional equation-of-state constraints
Portrait of Lawrence Krauss
. Mike Sheridan; American Atheists Convention, Iowa, 24 April 2011; Flickr photograph 5655574633, license reviewed on Commons in 2011. CC BY 2.0, via Wikimedia Commons. Source.