SCIENCE
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Ask Ethan: When do stars turn the most mass into energy? | by Ethan Siegel | Starts With A Bang! | May, 2025
This Wolf–Rayet star is known as WR 31a, located about 30,000 light-years away in the constellation of Carina. The outer…
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Why 21 cm is our Universe’s “magic length” | by Ethan Siegel | Starts With A Bang! | May, 2025
This map of the galaxy Messier 81, constructed from data taken with the Very Large Array, maps out this spiral-armed,…
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How come we’ve never observed a black hole decaying? | by Ethan Siegel | Starts With A Bang! | Apr, 2025
A black hole, even in radio wavelengths alone, will exhibit a large number of different features owing to the bending…
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Ask Ethan: What right do we have to colonize other worlds? | by Ethan Siegel | Starts With A Bang! | Apr, 2025
This illustration shows a human colony within a dome on an otherwise uninhabited planet. Humans have often dreamed of colonizing…
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Science’s best answer to “where did the Universe come from?” | by Ethan Siegel | Starts With A Bang! | Apr, 2025
During cosmological inflation, the space contained in the inflationary region grows exponentially, doubling in all three dimensions with each tiny…
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Ask Ethan: Couldn’t COVID-19 have originated in a Chinese Lab? | by Ethan Siegel | Starts With A Bang! | Apr, 2025
The SARS virus (orange) has a crown-like structure, meaning that it’s part of the coronavirus family of diseases. The novel…
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The sky is brighter than astronomers imagined | by Ethan Siegel | Starts With A Bang! | Apr, 2025
Around galaxy UGC 00180, a great stellar halo consisting of approximately four billion stars’ worth of matter can be discovered…
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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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No, the “Kalam cosmological argument” doesn’t prove God’s existence | by Ethan Siegel | Starts With A Bang! | Apr, 2025
These aren’t a pair of eyes gazing at us from the depths of space, but rather a pair of interacting…
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Giant, spinning galaxies go back a whopping 12 billion years | by Ethan Siegel | Starts With A Bang! | Apr, 2025
This one prominent galaxy, known as the Big Wheel and located 22 billion light-years away at present, spans ~100,000 light-years…
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