SCIENCE

How has cosmology changed from 2000 to 2025? | by Ethan Siegel | Starts With A Bang! | Apr, 2025

Many have already claimed that cosmology is in crisis, and that the Big Bang, and our entire ΛCDM paradigm, has…

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Starts With A Bang podcast #116 — Disintegrating exoplanets | by Ethan Siegel | Starts With A Bang! | Apr, 2025

Believe it or not, we’ve actually caught a few exoplanets doing exactly this, and we’ve got the JWST spectra in…

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Why we still don’t know how many stars are in the Milky Way | by Ethan Siegel | Starts With A Bang! | Apr, 2025

The Milky Way, as seen at La Silla observatory, is a stunning, awe-inspiring sight to anyone, and offers a spectacular…

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Ask Ethan: What does it mean to live in a quantum universe? | by Ethan Siegel | Starts With A Bang! | Apr, 2025

By creating two entangled photons from a pre-existing system and separating them by great distances, we can ‘teleport’ information about…

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100 years ago, Cecilia Payne discovered what the stars are made of | by Ethan Siegel | Starts With A Bang! | Apr, 2025

This image shows the core of globular cluster Terzan 5, just 22,000 light-years away in our own Milky Way, with…

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The most distant galaxy has oxygen, and that’s no surprise | by Ethan Siegel | Starts With A Bang! | Mar, 2025

This is an artist’s impression of JADES-GS-z14–0, which as of today is the most distant confirmed galaxy. Galaxies in the…

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Ask Ethan: Can we turn Einstein’s equations into Newton’s law? | by Ethan Siegel | Starts With A Bang! | Mar, 2025

There may never be another Einstein or another Newton, but we can all learn to utilize their equations under the…

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What are all the different types of nebula in astronomy? | by Ethan Siegel | Starts With A Bang! | Mar, 2025

This image shows six diff erent, unrelated planetary nebulae, all with similar, bipolar morphologies. These six objects, NGC 6302, NGC…

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Starts With A Bang podcast #115 — Dwarf galaxies in isolation | by Ethan Siegel | Starts With A Bang! | Mar, 2025

However, while most of the dwarf galaxies we know of are found as satellites around larger, more massive galaxies, they…

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Why invest in fundamental research? A former Nazi explains | by Ethan Siegel | Starts With A Bang! | Mar, 2025

Ernst Stuhlinger, seated at far left, was one of the early pioneers of NASA and of spaceflight missions in general…

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