Sara Walker

Jun 18, 2024 | arxiv.org | Sara Walker |Michael Lachmann |Leroy Cronin

Nov 6, 2023 | wri.org | Sara Walker

By Sara Walker Cover Image by: Camilo Lopez Arteaga/iStock For the first time, guidance is available for companies seeking to set freshwater science-based targets to limit the use of freshwater resources and ensure a sustainable future.

Aug 11, 2023 | americanscientist.org | Sara Walker |Lee Cronin

September-October 2023 Volume 111, Number 5 A timeless universe is hard to imagine, but not because time is a technically complex or philosophically elusive concept. There is a practical reason: The act of imagining timelessness requires time to pass. Even when you try to imagine its absence, you sense it moving as your thoughts shift, your heart pumps blood to your brain, and images, sounds, and smells move around you. The thing that is time never seems to stop.

May 19, 2023 | qoshe.com | Sara Walker |Lee Cronin

Columnists Actual . Favourites . Archive A timeless universe is hard to imagine, but not because time is a technically complex or philosophically elusive concept. There is a more structural reason: imagining timelessness requires time to pass. Even when you try to imagine its absence, you sense it moving as your thoughts shift, your heart pumps blood to your brain, and images, sounds and smells move around you. The thing that is time never seems to stop.

Apr 27, 2023 | noemamag.com | Sara Walker

Credits Sara Walker is an astrobiologist and theoretical physicist. She is the deputy director of the Beyond Center for Fundamental Concepts in Science and a professor in the School of Earth and Space Exploration at Arizona State University; external faculty at the Santa Fe Institute; and a fellow at the Berggruen Institute. Toward the end of August 1924, the orbits of Mars and Earth carried the two sister planets closer to each other than they had been in around a century.