Humans have been observing stars for centuries, but the methods scientists have to calculate a star’s age aren’t as exact as you’d think. Here we walk through three strategies: Hertzsprung-Russell diagrams, rotation rates and asteroseismology.
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CREDITS
Script
Lisa Grossman
Helen Thompson

Animation
Alex Pope

Narration and production
Helen Thompson

Video
sergeyxsp/Creatas Video+/Getty Images Plus
SDO/NASA's Goddard Space Flight Center
NCSA, NASA, A. Kritsuk, M. Norman
ESO, P. Kervella, Digitized Sky Survey 2, and A. Fujii
NASA's Scientific Visualization Studio
NASA's Goddard Space Flight Center
Science Photo Library/Image Bank Film/Getty Images Plus
NASA Ames Research Center
ESA/ATG medialab
ESO, B. Tafreshi (twanight.org)
ESO, N. Risinger (skysurvey.org)
ESO/M. Kornmesser

Images
N.A.Sharp/NOIRLab/AURA/NSF
NOIRLab/AURA/NSF
N.A.Sharp, Mark Hanna, REU program/NOIRLab/AURA/NSF
NASA, ESA, and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration
A. Skumanich/The Astrophysical Journal 1972
Carter Roberts/NASA

Music
“12 Variations on a French Nursery Theme” by Mozart/Stefano Ligoratti/MusOpen (CC BY 3.0)
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Storyblocks

Additional audio
J. Montalbán et al/Nature Astronomy 2021
Storyblocks

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