The 365 Days of Astronomy
14min2022 APR 26
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If the Big Bang happened 13.8 billion years ago how come we can still see it? What we can see is the cosmic microwave background, the CMB, which was a flash of light that actually occurred about 380,000 years after the Big Bang. How can we observe things that are receding from us at faster than the speed of light? So, as is well understood by regular Cheap Astronomy listeners – and probably other astronomy podcast listeners, the Universe’s expansion has an additive effect over distance. We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. Just visit: and donate as much as you can! Share the podcast with your friends and send the Patreon link to them too! Every bit helps! Thank you! ------------------------------------ Do go visit for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness!

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