SCIENCE

The CMB: the most important discovery in cosmic history | by Ethan Siegel | Starts With A Bang! | Feb, 2025

This composite image shows the microwave sky as imaged by three generations of spaceborne CMB missions: COBE (1990s), WMAP (2000s),…

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Ask Ethan: How are the heaviest elements of all made? | by Ethan Siegel | Starts With A Bang! | Jan, 2025

The elements of the periodic table, and where they originate, are detailed in this image above. While most elements originate…

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The tiniest, most isolated galaxies grow unstoppably | by Ethan Siegel | Starts With A Bang! | Jan, 2025

The nearby dwarf galaxy Leo P, whose individual blue stars are clearly visible, was imaged by JWST in order to…

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Ask Ethan: What are the biggest JWST discoveries so far? | by Ethan Siegel | Starts With A Bang! | Jan, 2025

This side-by-side view of galaxy cluster SMACS 0723 shows the MIRI (left) and NIRCam (right) views of this region from…

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Protons: made of quarks, but ruled by gluons | by Ethan Siegel | Starts With A Bang! | Jan, 2025

The proton isn’t just made of three valence quarks, but rather contains a substructure that is an intricate and dynamic…

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Cosmic first: supermassive black hole caught “turning on” in real-time | by Ethan Siegel | Starts With A Bang! | Jan, 2025

This artist’s depiction shows a tidal disruption event around an active black hole. Whereas most active black holes that have…

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Ask Ethan: How do photons mediate both attraction and repulsion? | by Ethan Siegel | Starts With A Bang! | Jan, 2025

Today, Feynman diagrams are used in calculating every fundamental interaction spanning the strong, weak, and electromagnetic forces, including in high-energy…

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25 year update on the “Millennium problems” in physics | by Ethan Siegel | Starts With A Bang! | Jan, 2025

The idea that the forces, particles, and interactions that we see today are only part of a grander, larger-dimensional structure…

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Ask Ethan: Can a lumpy Universe explain dark energy? | by Ethan Siegel | Starts With A Bang! | Jan, 2025

By mapping out the three-dimensional positions of galaxies over a large volume of the Universe, scientists within the DESI collaboration…

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The one-page calendar that changes how you view the year | by Ethan Siegel | Starts With A Bang! | Jan, 2025

The conventional way we display annual calendars, at left, requires us to examine each month separately, either relegating the full…

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