The Universe's Expansion Rate: The Hubble Tension | NASA Goddard

The Universe's Expansion Rate: The Hubble Tension | NASA Goddard

When the Hubble Space Telescope launched, one of its main goals was to measure the rate at which our universe is expanding. This rate is called the “Hubble Constant”—named after the astronomer Edwin Hubble, who contributed to the discovery of the universe’s expansion. However, the expected value of the expansion rate is different depending on what equipment is being used to determine it.

In this video, Nobel Laureate Dr. Adam Riess explains this phenomenon, known as “Hubble Tension,” and how important this mystery is to our understanding of the universe.

Video Credit: NASA's Goddard Space Flight Center 

Producer & Director: James Leigh

Editor: Lucy Lund

Director of Photography: James Ball

Additional Editing & Photography: Matthew Duncan

Executive Producers: James Leigh & Matthew Duncan

Production & Post: Origin Films 

Video Credit:

Hubble Space Telescope Animation

Credit: M. Kornmesser (ESA/Hubble)

Dark Energy Expansion Graph

Dark Energy Expansion Animation 

Credit: NASA's Goddard Space Flight Center Conceptual Image Lab

Hubble Extreme Deep Field Fly Through

Credit: NASA, ESA, and F. Summers, L. Frattare, T. Davis, Z. Levay, and G. Bacon (Viz3D Team, STScI)

James Webb Space Telescope Animations

Credit: NASA's Goddard Space Flight Center Conceptual Image Lab

Duration: 5 minutes

Release Date: Sept. 12, 2023

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