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Astronomy

A collection of TED Talks (and more) on the topic of Astronomy.

Video playlists about Astronomy

The mystery and wonder of stars

Zoom into the strange wonder and potential of stars in our universe.

What’s really floating out in space?

The answer is satellites, stars, planets, asteroids and maybe even aliens.

The lights and sounds of the universe

Find out what sound a black hole makes, if (possible) alien life is blocking star light and other astounding things happening in our galaxy -- and beyond.

How we study space

Beyond our galaxy, there lies much more to be discovered. Learn how we explore the universe with talks that are definitely out of this world.

See all playlists on Astronomy

Talks about Astronomy

Life-altering questions about the end of the universe

The woman who stared at the sun

The death of the universe -- and what it means for life

A NASA astronaut's lessons on fear, confidence and preparing for spaceflight

A stellar history of modern astronomy

How humanity can reach the stars

Newton's three-body problem explained

The search for dark matter -- and what we've found so far

Enrico Ramirez-Ruiz

Your body was forged in the spectacular death of stars

The problem of light pollution -- and 5 ridiculously easy ways to fix it

The search for our solar system's ninth planet

Hawking's black hole paradox explained

Federica Bianco

How we use astrophysics to study earthbound problems

Soraya Field Fiorio

The murder of ancient Alexandria's greatest scholar

Lynn Rothschild

The living tech we need to support human life on other planets

The most detailed map of galaxies, black holes and stars ever made

See all talks on Astronomy

Exclusive articles about Astronomy

5 1/2 reasons you shouldn’t miss the solar eclipse, straight from an over-the-moon astrophysicist

Here’s why should stop what you’re doing and look up at the sky on August 21, according to astrophysics researcher Jedidah Isler.

Posted Aug 2017

The out-of-this-world strategies in place to stop an asteroid impact

NASA has a plan to combat rogue interstellar objects -- and even a Planetary Defense Officer. Asteroid hunter, space scientist and writer Carrie Nugent reveals the array of tactics, from the tested to the far-out.

Posted Mar 2017

How to catch a ripple in spacetime

How do you build a real-world machine to test the most abstract of theories? Janna Levin talks with Rai Weiss, one of the original designers of LIGO, the four-kilometer-long sensors that have now twice detected the distant reverberations of two black holes crashing into one another.

Posted Jun 2016

See all articles on Astronomy