SCIENCE

Ask Ethan: Could dark energy be more negative than a cosmological constant? | by Ethan Siegel | Starts With A Bang! | May, 2025

For the first several billion years of our Universe’s history, the Universe’s expansion rate was decreasing and distant galaxies slowed…

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Does physics truly have anything to say about consciousness? | by Ethan Siegel | Starts With A Bang! | May, 2025

The brain is a network of neurons, connected by synapses, embedded in a substrate of four different types of glial…

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Starts With A Bang podcast #117 — Gravitational waves and the Universe | by Ethan Siegel | Starts With A Bang! | May, 2025

The image above shows an illustration of the three future LISA, or Laser Interferometer Space Antennae, spacecrafts, in a trailing…

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The Universe is not symmetric. The laws of physics obey certain… | by Ethan Siegel | Starts With A Bang! | May, 2025

Although we like to think that the Universe is symmetric, reflecting something as simple as a left hand in a…

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JWST’s most ambitious view is now available to everyone | by Ethan Siegel | Starts With A Bang! | May, 2025

This view represents more than 50% of the COSMOS-Web survey: the largest, deepest view of the Universe ever acquired with…

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Ask Ethan: Is dark energy just leftover momentum from the Big Bang? | by Ethan Siegel | Starts With A Bang! | May, 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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A new collider can teach us about the origin of matter | by Ethan Siegel | Starts With A Bang! | May, 2025

Although there are many novel proposals for new particle colliders, including in China, at CERN, and at Fermilab, the question…

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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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The importance of caring about the truth | by Ethan Siegel | Starts With A Bang! | Apr, 2025

The lab leak conspiracy theory, promoted here in 2021 by Sen. Rand Paul, vilifies Dr. Fauci and attempts to tie…

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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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