David Weintraub – How Old Is the Universe?

David Weintraub

Professor of Astronomy and Director of the Communication of Science Program, Emeritus, Vanderbilt University

How Old Is the Universe?

THE CLASSROOM WILL BE CLOSED FOR THIS EVENT

This lecture will be hosted as a Webinar on Zoom as well as a live stream on our YouTube channel. We encourage you to participate, ask questions, and be a part of the live meeting.

 

We are creatures bound to the surface of a small planet and confined to lifetimes of less than one hundred years. Yet, with our senses, reason and intellect we have determined that the universe is 13.8 billion years old.  Ask any astronomer why they believe the universe is 13.8 billion years old, and they will tell you that they do not believe that the universe is 13.8 billion years; they know that it is 13.8 billion years old, give or take a hundred million years. Why are astronomers so confident? It turns out that their certainty is not hubris. They know that this number is the only valid answer to the question of the age of the universe because it emerges from a meticulous interpretation of all the data gathered from rocks, stars, galaxies, and the whole universe that humanity has painstakingly collected over the centuries. It is the only answer that is consistent with the laws of physics as we know them and with the firm logic of mathematics and that is justified by the collective labors of astronomers, as well as of chemists, mathematicians, geologists and physicists. The answer rests, in fact, on very solid foundations.

 

This is a truly awe-inspiring discovery with profound implications for science, religion and philosophy.  But how is it possible that astronomers have figured out the age of the universe? How do they know the universe even has an age?

 

In our time together this evening, we will examine the intellectual underpinnings of the very question “How old is the universe?” and also examine some of the evidence amassed by astronomers in our attempt to answer that question.

 

This talk is built on the foundation of my book How Old is the Universe? (Princeton University Press, 2010), which itself was the foundation for my introductory astronomy course taught at Vanderbilt for three decades.

 

Dr. David A. Weintraub is a Professor of Astronomy at Vanderbilt University, where he founded and directs the Communication of Science and Technology program and does research on the formation of stars and planets. He has secondary appointments in History and the Communication of Science and Technology. He is the 2015 winner of the Klopsteg Award from the American Association of Physics Teachers, which recognizes the outstanding communication of the excitement of contemporary physics to the general public. His most recent book is The Sky is for Everyone: Women Astronomers in Their Own Words (2022, Princeton University Press). Previous books include Life on Mars: What to Know Before We Go (2018, PUP), Religions and Extraterrestrial Life: How Will We Deal With It? (2014, Springer), How Old is the Universe? (2010, PUP), and Is Pluto a Planet? (2006, PUP). He has also created the Who Me? series of scientific biographies for fifth-grade level readers and is co-editor of three published books and six in-development books in this series, most of which are being written in partnership with Vanderbilt undergraduates.

Weintraub served as Chair of the Vanderbilt University Faculty Senate (2011-2012), and on the College of Arts & Science Faculty Council for eight years, including twice as Chair (2003-2004 and 2016-2017), Director of Undergraduate Studies for Physics & Astronomy (2003-2018), and Director the Communication of Science and Technology Program (2006-2023). He served on 13 different committees across ten years (1999-2009) that invented and developed the First-Year Commons and Residential College program at Vanderbilt, served on the committees that invented and implemented the AXLE curriculum for Arts & Science undergraduates (1999-2006), and chaired the ad hoc Greek Life Review Task Force for the Faculty Senate (2013-2016). He was awarded by Vanderbilt the Chancellor’s Cup (2001), the Jeffrey Nordhaus Award for Undergraduate Teaching (2003), the Chancellor’s Award for Research (2005), the Thomas Jefferson Distinguished Service Award (2009), and the Ernest A. Jones Undergraduate Advisor Award (2011)He has been honored as the John Wiley Jones Distinguished Lecturer at Rochester Institute of Technology (2012), the Natural Sciences Distinguished Lecturer at Colgate University (2014), and the Robert M. Woods Memorial Lecturer at Westminster (PA) College (2016).

 

The next Cal’s
Corner will celebrate the September Equinox with some galactic fireworks.

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Date

Sep 17 2024

Time

8:00 pm - 10:00 pm

Local Time

  • Timezone: America/New_York
  • Date: Sep 17 2024
  • Time: 8:00 pm - 10:00 pm

Labels

WAS Free Online Science Lecture Series

Location

Online Only