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Today marks our namesake Edwin Hubble’s birthday! 🎂

Our telescope is named after him, and so is the Hubble Constant – the rate at which our universe expands.

Learn more in this new Hubble Science video!
#Hubble
#hubble
in reply to NASA

Madison
Madison
• •
excellent video, I knew Hubble's observations were responsible for knowing the expansion but never heard of the Hubble constant, thanks!

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