New Books in Popular Culture cover image

James Trefil and Shobita Satyapal, "Supermassive: Black Holes at the Beginning and End of the Universe" (Smithsonian Books, 2025)

New Books in Popular Culture

00:00

Using pulsars and quasars as celestial reference clocks

Shobita notes pulsars and compact sources function as precise, fixed sky references useful for navigation and timing.

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