SCIENCE

Is our first “galaxy-quasar hybrid” also a Little Red Dot?

Found by Hubble before JWST’s launch, GNz7q looked like a mix of a galaxy and a quasar. Was it actually…

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Ask Ethan: Is the Hubble tension the same thing as dark energy? | by Ethan Siegel | Starts With A Bang! | Oct, 2025

Press enter or click to view image in full size This slice of the DESI data maps celestial objects from…

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Cosmic inflation’s biggest criticisms can’t undermine its success | by Ethan Siegel | Starts With A Bang! | Oct, 2025

Press enter or click to view image in full size From whatever pre-existing state started it, inflation predicts that a…

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Starts With A Bang podcast #122 — Galaxy evolution and JWST | by Ethan Siegel | Starts With A Bang! | Oct, 2025

This image shows a tiny sliver of the COSMOS-Web survey, with galaxies at a variety of distances along with a…

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Macroscopic quantum tunneling wins 2025’s Nobel Prize in physics | by Ethan Siegel | Starts With A Bang! | Oct, 2025

Press enter or click to view image in full size Most of us are familiar with the experience of throwing…

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Ask Ethan: How and when will the Universe die? | by Ethan Siegel | Starts With A Bang! | Oct, 2025

Press enter or click to view image in full size When multiple masses interact under their own mutual gravitation, the…

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What do distant observers see when they look at Earth? | by Ethan Siegel | Starts With A Bang! | Oct, 2025

Press enter or click to view image in full size This depiction of an Earth-like exoplanet showcases a rocky world…

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The 5 biggest mysteries about the origin of our Universe | by Ethan Siegel | Starts With A Bang! | Oct, 2025

A period of cosmic inflation stretched space flat, seeding the Universe with quantum fluctuations. Press enter or click to view…

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Ask Ethan: Where are we located relative to the Big Bang? | by Ethan Siegel | Starts With A Bang! | Oct, 2025

Press enter or click to view image in full size Artist’s logarithmic scale conception of the observable universe. The Solar…

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The Big Bang doesn’t mean what it used to | by Ethan Siegel | Starts With A Bang! | Sep, 2025

Press enter or click to view image in full size From a pre-existing state, inflation predicts that a series of…

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