Speaker
,Author
Sara Walker
“The problem with attempts to define life is that life is not a natural kind.”
Sara Walker is one of the world's more pioneering astrobiologists, theoretical physicists and science communicators. She explores some of the most profound questions in science relating to topics none other than the origin of life and how to find life on other worlds.
Walker is currently Deputy Director of the Beyond Center for Fundamental Concepts in Science at Arizona State University, Associate Director of the ASU-SFI Center for Biosocial Complex Systems and an associate professor at Arizona State University (ASU). She is a leading advocate for the communication of science to the public and has participated in many interviews, panels, and lectures to discuss her research and topics related to her fields of study.
“A fascinating thinker” – Santa Fe Institute
“The problem with attempts to define life is that life is not a natural kind.”
Sara Walker is one of the world's more pioneering astrobiologists, theoretical physicists and science communicators. She explores some of the most profound questions in science relating to topics none other than the origin of life and how to find life on other worlds.
Walker is currently Deputy Director of the Beyond Center for Fundamental Concepts in Science at Arizona State University, Associate Director of the ASU-SFI Center for Biosocial Complex Systems and an associate professor at Arizona State University (ASU). She is a leading advocate for the communication of science to the public and has participated in many interviews, panels, and lectures to discuss her research and topics related to her fields of study.
“A fascinating thinker” – Santa Fe Institute
Sara Walker Videos
Sara Walker Articles
More Videos
Spacetime and the Structure of Reality
Carlo Rovelli on Loop Quantum Gravity
Is Time Travel Just a Fantasy?
Exploring the outer limits of physics
Gravity minus dark matter
Erik Verlinde offers a new theory of gravitation
Missing Evidence
Does physics still need experiment?
Is Nothing an Illusion?
Explaining everything and Nothing
Gravity
Why is gravity so elusive?
The End of the Theory of Everything
Can we fully describe reality?
Time, Space and Being
Are space and time real?
Why There Is Something Rather Than Nothing
Can science solve metaphysics' riddle?
The Laws of the Universe
Are the laws of nature just human constructs?
Back from the End of Time
Is the passage of time an illusion?
Cosmic Dreams
Forty years on, what questions has String Theory left unanswered?
The Strangeness of Things
Are things a necessary foundation of reality?
Why The World Exists
In Search of Parallel Universes
Big Bang Creation Myths
Is the Big Bang theory mistaken?
The End of All Things
What is reality made of?
Is Reality an Illusion?
Quantum physics, objective and subjective reality
The Dark Universe
Are theories of dark matter and dark energy true?
Why Does Time Fly?
Bernard Carr | Time and consciousness
Quantum Whispers
Is teleportation close to becoming a reality?
Decoding the Universe
Chiara Marletto | Reality as a string of code
The Poetry of the Universe
Sean Carroll | We are made of stories, not atoms
Playing Dice With The Universe
Is the universe really unknowable even to itself?
When Time Stands Still
Is the flow of time an illusion?
How to Find a Multiverse
The Latest Evidence of Parallel Worlds
Time's Arrow
Can physics explain the nature of time?
Bang Goes the Big Bang
Is it possible that the Big Bang is a mistake?
The Next Universe
Roger Penrose's New Story of Existence
After the Higgs Boson
What's next for 21st century physics?
The Universe Code
Is information fundamental?
Into the Unknown
What is the future of space exploration?
The Stuff of the Universe
Is materialism wrong?
Bang Goes Another Theory of the Universe
Are black holes a fantasy?
The Theory of Everything
Are we close to a final theory of the universe?
It's an Immaterial World
Do particles exist?
Pythagoras' Dream
Is reality mathematical?
Beyond the Standard Model
Tevong You | The first new particle after Higgs
Something and Nothing
Is there something rather than nothing?
Life, the Universe and Everything
Is reality beyond reach?
In a Parallel Universe
Are there many worlds?
A Goldilocks World
Is the universe finely tuned for life?
The Mathematics of Thought
How has mathematics changed philosophy?
It's an Immaterial World
Do particles exist?
Wonders of the Big Bang
Reconstructing the first moments of the universe
Uncovering Reality
Physics, truth and metaphor
Masters of the World
Is the universe mathematical?
Stephen Hawking and the Progress of Physics
Understanding the origin of the universe
Conjuring the Universe
The origins of the laws of nature | Peter Atkins
Quantum Effects in Gravity
Chiara Marletto | A new theory in physics
Demons Among Us
Are germs as imaginary as demons?
More Articles
Me, myself and others
Knowing what to believe
Free will: an impossible reality
What physicists get wrong about consciousness
The brain doesn't create consciousness
Are you responsible for your unconscious self?
The Dangers of Musk’s Neuralink
Moral responsibility without free will
Consciousness is the collapse of the wave function
Free will or no free will, punishment is justified
The impotence of reason
Schrödinger and the conscious universe
Why panpsychism is baloney
Imagination, consciousness and animal dreams
The free will debate has real-world consequences
Denis Noble: Free will is not an illusion
Consciousness may not require a brain
Big tech doesn’t want AI to become conscious
Pinker on the power of irrationality
Future AI in the therapist's chair
When are intuitions a good guide to reality?
Nietzsche: ignorance sets us free
Why Steven Pinker is wrong about rationality
Consciousness begins with feeling, not thinking
The absurdity of mind as machine
Is rationality a fiction?
Brain noise doesn't explain consciousness
David Nutt: entropy explains consciousness
Bias doesn't always undermine truth
Brain vs Heart: a false dichotomy