Janna Levin

Janna Levin

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Astrophysicist and author; black holes, cosmology, space education.

Our Clocks Are Cosmic Cycles: From Day to Galaxy
SocialMar 21, 2026

Our Clocks Are Cosmic Cycles: From Day to Galaxy

Humanity is keeping time by keeping track of these celestial cycles. Like the dial of an analog clock, the cycles swing around and around: the daily cycle of the Earth’s spin, the monthly cycle of the Moon, the yearly cycle...

By Janna Levin
Earth’s 26,000‑year Wobble Swaps North Stars
SocialMar 21, 2026

Earth’s 26,000‑year Wobble Swaps North Stars

The Vernal Equinox (equi-night) reminds me of other celestial cycles. The Earth’s spin axis takes about 26,000 years to wobble around like a spinning top, a motion known as the precession of the equinoxes. Right now, Polaris is the north...

By Janna Levin
Does Quantum Teleportation Duplicate Your Identity?
SocialMar 12, 2026

Does Quantum Teleportation Duplicate Your Identity?

Are you destroyed by teleportation? If your quantum information over here is copied and posted over there into another set of particles, is it still you? https://t.co/GTCLhiF2rD

By Janna Levin
Quantum AI May Evolve Into Unknowable Consciousness
SocialMar 12, 2026

Quantum AI May Evolve Into Unknowable Consciousness

Quintelligence: Quantum AI could become an unknowable consciousness...Paul Davies, Natalia Ares, and Yours Truly https://t.co/I0VHY4bx7B

By Janna Levin
Watch Tonight's Quantum AI Revolution Live
SocialMar 10, 2026

Watch Tonight's Quantum AI Revolution Live

Join the livestream of tonight’s event. Losing sleep over AI? Maybe best not to ruminate on Quintelligence— Quantum AI. But if you can’t help yourself, tune in. A quiet revolution in quantum information science is underway with quantum computers and...

By Janna Levin
Quantum Mechanics: Unmatched Precision, Yet Reality‑Defying
SocialMar 7, 2026

Quantum Mechanics: Unmatched Precision, Yet Reality‑Defying

A full century after the discovery of a peculiar microscopic world, quantum mechanics has triumphed as the most precisely verified physical theory in the history of science. Yet the quantum world defies conventional notions of reality. In this episode of...

By Janna Levin