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Astronomy Biology Chemistry Cosmology Deep Time Earth Science Ecology & Environmental Sciences Evolution Genetics History of Science Human Evolution Mathematics Physics Quantum Theory
Space Exploration
What if ET is an AI?

After centuries searching for extraterrestrial life, we might find that first contact is not with organic creatures at all

Caleb Scharf

Our aquatic universe

We know that the Universe is awash with watery moons and planets. How can we pinpoint which of them could support life?

Tim Folger

History of Science
Behold: science as seeing

One astronomer’s dimpled pie is another’s cratered moon. How can our mind’s eye learn to see the new and unexpected?

Gene Tracy

Philosophy of Science
Is the Universe a conscious mind?

Cosmopsychism might seem crazy, but it provides a robust explanatory model for how the Universe became fine-tuned for life

Philip Goff

History of Science
Life in hollow Earth

Is Earth inside the Universe, or vice versa? Since we can grasp only a model of reality, how do we know what’s real?

Joel Frohlich

Radical dimensions

Relativity says we live in four dimensions. String theory says it’s 10. What are ‘dimensions’ and how do they affect reality?

Margaret Wertheim

The ethics of ET

The discovery of independent life beyond Earth would have deep philosophical implications for us, and our ideas of morality

Tim Mulgan

Universe in a bubble

Maybe we don’t have to speculate about what life is like inside a bubble. It might be the only cosmic reality we know

J Richard Gott

Meaning & the Good Life
Do we matter in the cosmos?

Humanity is nothing more than a microscopic blip in the universe. But does that mean we are insignificant?

Nick Hughes

Echoes of a black hole

Ripples in space-time could herald the demise of general relativity and its replacement by a quantum theory of gravity

Sabine Hossenfelder

Deep Time
Welcome to Terra Sapiens

Humans have been altering Earth for millennia, but only now are we wise to what we’re doing. How will we use that wisdom?

David Grinspoon