Somewhere, something incredible is waiting to be known

Founder: Joseph Barone

Contributors: crookedindifference, bumerangue, propagandery, rocketmagic, rostenbach

 

the-star-stuff:

Measuring the Universe

How do we know how far away objects are? This video nicely illustrates what we call the “distance ladder” in astronomy: parallax, standard candles, redshift— all technical concepts clearly and beautifully explained.

by Royal Observatory Greenwich

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    Measuring the Universe
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    Wow this was REALLY COOL OKAY.
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