Explainers

By clicking to watch this video, you agree to our privacy policy.

Space-Time: The Biggest Problem in Physics

What is the deepest level of reality? In this Quanta explainer, Vijay Balasubramanian, a physicist at the University of Pennsylvania, takes us on a journey through space-time to investigate what it’s made of, why it’s failing us, and where physics can go next.


Explore All Videos

Meet One of NASA’s Pioneering Women

January 19, 2021

Christine Darden describes what it was like working at NASA in the 1960s and how she became an authority on minimizing sonic booms.

What Makes Physics Beautiful, According to a Nobel Prize Winner

January 12, 2021

Frank Wilczek discusses the work that led to his Nobel and the inherent beauty of physical law.

The Riemann Hypothesis, Explained

January 5, 2021

Alex Kontorovich, professor of mathematics at Rutgers University, breaks down the notoriously difficult Riemann hypothesis in this comprehensive explainer.

2020’s Biggest Breakthroughs in Biology

January 5, 2021

In 2020, the study of the SARS-CoV-2 virus was undoubtedly the most urgent priority. But there were also other major breakthroughs in the life sciences.

2020’s Biggest Breakthroughs in Math and Computer Science

January 5, 2021

For mathematicians and computer scientists, 2020 was full of discipline-spanning discoveries and celebrations of creativity.

2020’s Biggest Breakthroughs in Physics

January 5, 2021

This year, two teams of physicists made profound progress on ideas that could bring about the next revolution in physics. Another has identified the source of a longstanding cosmic mystery.

New Clues in the Age-Old Question of the ‘Male’ and ‘Female’ Brain

December 14, 2020

Catherine Dulac of Harvard University discusses the roots of “male” and “female” parenting behaviors in mammalian brains.

This Computer Scientist’s Streaming Algorithms Shrink Big Data

December 7, 2020

Jelani Nelson explains how his streaming algorithms answer questions about big data without having to remember everything they’ve seen.

Inside Dynamical Systems and the Mathematics of Change

November 17, 2020

Bryna Kra explains how to describe complex systems in symbols.