Happiness

How Vast Are the Cosmos, Really?

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There are billions of planets in our galaxy, and billions of galaxies in the observable universe. Those numbers are impossible to picture, but NASA’s newest space telescope is helping us see the universe’s depths in unprecedented detail. Still, there’s one big mystery that humans might never be able to solve: How vast are the cosmos, really, and what do they contain?

If humans were to find evidence of life elsewhere in the universe, it would be a scientific marvel, but also an emotional and spiritual one, the physicist Alan Lightman noted in an essay earlier this fall. Our questions would multiply: “Where did we living things come from? Is there some kind of cosmic community?”

Lightman explains why life in the universe is likely really, really rare. “We living things are a very special arrangement of atoms and molecules,” he writes. But these questions aren’t just about other planets and galaxies; they’re also about us, here on Earth, and why we may want to believe that our lives and our stories are one of a kind. What follows is a reading list on why things are the way they are—from life on Earth down to creepy coincidences at the coffee shop—and how we deal with the unknowable.


The Cosmic Dice

Illustration of a galaxy shaped like a human eye
Erik Carter / The Atlantic; Getty

Life Is an Accident of Space and Time

By Alan Lightman

Even if life existed on every planet that could support it, living matter in the universe would amount to only a few grains of sand in the Gobi Desert.

A person holds a globe against a background of Earths hit by meteors, crumbling, and colliding with rockets.
Zoë van Dijk

Why Earth’s History Appears So Miraculous

By Peter Brannen

The strange, cosmic reason our evolutionary path will look ever luckier the longer we surviv

Illustration depicting a brain connecting different pieces of data, including lotto numbers and birthdates.
Hein Nouwens / Shutterstock / Kara Gordon / The Atlantic

Coincidences and the Meaning of Life

By Julie Beck

The surprising chances of our lives can seem like they’re hinting at hidden truths, but they’re really revealing the human mind at work.


Still Curious?


Other Diversions


P.S.

I’ll leave you with an interesting tidbit from Julie Beck’s article on coincidences: Beck cites research showing that certain personality traits are linked to a greater likelihood of experiencing coincidences. People who self-describe as religious and people who seek meaning, for instance, are especially prone to finding coincidences in their daily lives.

(One group that might not see as many coincidences? Residents of the U.K, according to one professor Beck spoke with. “Coincidences never happen to me at all, because I never notice anything,” he said. “I never talk to anybody on trains. If I’m with a stranger, I don’t try to find a connection with them, because I’m English.”)

— Isabel

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