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Ethan Siegel
@startswithabang.bsky.social
Cosmologist, science communicator, author, speaker, and longtime writer of Starts With A Bang. Not the next Carl Sagan; the first Ethan Siegel.
928 followers129 following355 posts

One more plug to ask you to pre-order, either from Disney: books.disney.com/book/infinit...amzn.to/4dtb8y5 After all, pre-orders are the #1 way to help an author's new book succeed!

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And although I'll have one more preview for you with more images inside before the book comes out, I truly want to highlight some gorgeous, informative, but less-well appreciated views of JWST, such as this one of the cosmic Chameleon. Star-formation just 500 light-years away!

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Also inside the book are eight different "Focus" sections, where I got to go in-depth into the science of one major aspect of JWST. In this spread, you can see the focus is on how JWST scientists colorize, or assign colors, at wavelengths where light is invisible to human eyes!

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Although many of the objects have been looked at in detail with other observatories, such as the El Gordo galaxy cluster, the details JWST finds inside are unlike anything anyone else has ever seen! (And NatGeo/Disney let me keep my Moana joke for the cosmic fishhook, at right!)

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One of the most remarkable things JWST is optimized for is looking for ultra-distant and ultra-distorted and magnified objects from gravitational lensing. Not only do we have the spectacular JWST sights to behold, but science explainers and diagrams to go along with them!

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It's time for another look inside Infinite Cosmos, coming out from me and National Geographic this Tuesday! Remember to pre-order, either from Disney: books.disney.com/book/infinit...amzn.to/4dtb8y5 Come take a look inside "sights and science," the biggest Chapter! (Ch. 3)

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Starts With A Bang podcast #110 – Optical Interferometry With telescopes, there's always a trade-off between cost and size, and size determines resolution. That's why interferometry offers the best bang-for-our-buck. MROI should be on everyone's radar. bigthink.com/starts-with-...

Starts With A Bang podcast #110 - Optical Interferometry
Starts With A Bang podcast #110 - Optical Interferometry

Interferometry gave us a black hole's event horizon, but that was in the radio. What can we accomplish with a new optical interferometer?

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What created more light: the Big Bang or stars? The Big Bang created an enormous amount of light, but did so all at once. For 13.8 billion years, stars have been forming and shining, emitting light, too. So which one created more photons? bigthink.com/starts-with-...

What created more light: the Big Bang or stars?
What created more light: the Big Bang or stars?

The Universe has been creating stars for nearly all 13.8 billion years of its history. But those photons can't match the Big Bang's light.

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Come back tomorrow when I'll share a look inside Chapter 3, the longest and richest chapter of Infinite Cosmos, which highlights the sights and science of this revolutionary observatory!

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Ethan Siegel
@startswithabang.bsky.social
Cosmologist, science communicator, author, speaker, and longtime writer of Starts With A Bang. Not the next Carl Sagan; the first Ethan Siegel.
928 followers129 following355 posts