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  • Talks 324
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1 - 30 of 841 results

Brian Greene: Is our universe the only universe?

Is there more than one universe? In this visually rich, action-packed talk, Brian Greene shows how the unanswered questions of physics (starting with a big one: What caused the Big Bang?) have led to the theory that our own universe is just one of many in the "multiverse."
https://www.ted.com/talks/brian_greene_why_is_our_universe_fine_tuned_for_life

Stephen Hawking: Questioning the universe

In keeping with the theme of TED2008, professor Stephen Hawking asks some Big Questions about our universe -- How did the universe begin? How did life begin? Are we alone? -- and discusses how we might go about answering them.
https://www.ted.com/talks/stephen_hawking_asks_big_questions_about_the_universe

Janna Levin: The sound the universe makes

We think of space as a silent place. But physicist Janna Levin says the universe has a soundtrack -- a sonic composition that records some of the most dramatic events in outer space. (Black holes, for instance, bang on spacetime like a drum.) An accessible and mind-expanding soundwalk through the universe.
https://www.ted.com/talks/janna_levin_the_sound_the_universe_makes

Playlist: The lights and sounds of the universe (5 talks)

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.
Curated by TED · 5 talks
http://www.ted.com/playlists/the_lights_and_sounds_of_the_u

Playlist: Are we alone in the universe? (9 talks)

Is Earth really the only life-sustaining planet? These speakers think there might just be something or someone else out there -- and urge us to keep looking for it.
Curated by TED · 9 talks
http://www.ted.com/playlists/are_we_alone_in_the_universe

Playlist: Live out your sci-fi dreams (10 talks)

Imagine a life living among the stars, traversing the universe, interacting with aliens ...
Curated by TED · 10 talks
http://www.ted.com/playlists/live_out_your_sci_fi_dreams

Sajan Saini: What is the universe expanding into?

The universe began in a Big Bang nearly fourteen billion years ago, and has been expanding ever since. But how does the universe expand and what is it expanding into? Sajan Saini explains the existing theories around the Big Bang and what, if anything, lies beyond our universe. [TED-Ed Animation by Wooden Plane Productions]
https://www.ted.com/talks/sajan_saini_what_is_the_universe_expanding_into

Tom Whyntie: The beginning of the universe for beginners

How did the universe begin -- and how is it expanding? CERN physicist Tom Whyntie shows how cosmologists and particle physicists explore these questions by replicating the heat energy and activity of the first few seconds of our universe from right after the Big Bang. [Directed by Dan Abdo and Jason Patterson, narrated by R.J. Glass].
https://www.ted.com/talks/tom_whyntie_the_beginning_of_the_universe_for_beginners

Richard Dawkins: Why the universe seems so strange

Biologist Richard Dawkins makes a case for "thinking the improbable" by looking at how the human frame of reference limits our understanding of the universe.
https://www.ted.com/talks/richard_dawkins_on_our_queer_universe

Jim Holt: Why does the universe exist?

Why is there something instead of nothing? In other words: Why does the universe exist (and why are we in it)? Philosopher and writer Jim Holt follows this question toward three possible answers. Or four. Or none.
https://www.ted.com/talks/jim_holt_why_does_the_universe_exist

George Smoot: The design of the universe

At Serious Play 2008, astrophysicist George Smoot shows stunning new images from deep-space surveys, and prods us to ponder how the cosmos -- with its giant webs of dark matter and mysterious gaping voids -- got built this way.
https://www.ted.com/talks/george_smoot_on_the_design_of_the_universe

Douglas Adams: Parrots, the universe and everything

Blind river dolphins, reclusive lemurs, a parrot as fearless as it is lovelorn ... Douglas Adams' close encounters with these rare and unusual animals reveal that evolution, ever ingenious, can be fickle too -- in a University of California talk that sparkles with his trademark satiric wit.
https://www.ted.com/talks/douglas_adams_parrots_the_universe_and_everything

Richard Dawkins: Growing up in the universe

At the Royal Institution in 1991, Richard Dawkins asks us to look at our universe with new eyes. Packed with big questions and illuminating visuals, this memorable journey through the history of life magnifies the splendor of evolution and our place in it.
https://www.ted.com/talks/richard_dawkins_growing_up_in_the_universe

Playlist: The mystery and wonder of stars (4 talks)

Zoom into the strange wonder and potential of stars in our universe.
Curated by TED · 4 talks
http://www.ted.com/playlists/the_mystery_and_wonder_of_stars

Playlist: How we study space (13 talks)

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.
Curated by TED · 13 talks
http://www.ted.com/playlists/how_we_study_space

Gian Giudice | TED Speaker

Gian Giudice is a theoretical physicist who has contributed greatly to our present understanding of particle physics and cosmology.
Theoretical physicist
https://www.ted.com/speakers/gian_giudice

Garrett Lisi: An 8-dimensional model of the universe

Physicist and surfer Garrett Lisi presents a controversial new model of the universe that -- just maybe -- answers all the big questions. If nothing else, it's the most beautiful 8-dimensional model of elementary particles and forces you've ever seen.
https://www.ted.com/talks/garrett_lisi_on_his_theory_of_everything

Carter Emmart: A 3D atlas of the universe

For the last 12 years, Carter Emmart has been coordinating the efforts of scientists, artists and programmers to build a complete 3D visualization of our known universe. He demos this stunning tour and explains how it's being shared with facilities around the world.
https://www.ted.com/talks/carter_emmart_demos_a_3d_atlas_of_the_universe

Wendy Freedman: This telescope might show us the beginning of the universe

When and how did the universe begin? A global group of astronomers wants to answer that question by peering as far back in time as a large new telescope will let us see. Wendy Freedman headed the creation of the Giant Magellan Telescope, under construction in South America; at TEDGlobal in Rio, she shares a bold vision of the discoveries about o...
https://www.ted.com/talks/wendy_freedman_this_new_telescope_might_show_us_the_beginning_of_the_universe

Playlist: Bobak Ferdowsi: On our home in the universe (5 talks)

NASA engineer Bobak Ferdowsi helped the Curiosity rover land on Mars -- and he's curated these talks that deepen our understanding of the world around us.
Curated by Bobak Ferdowski · 5 talks
http://www.ted.com/playlists/bobak_ferdowsi_on_our_home_in

Natasha Hurley-Walker: How radio telescopes show us unseen galaxies

Our universe is strange, wonderful and vast, says astronomer Natasha Hurley-Walker. A spaceship can't carry you into its depths (yet) -- but a radio telescope can. In this mesmerizing talk, Hurley-Walker shows how she probes the mysteries of the universe using special technology that reveals light spectrums we can't see.
https://www.ted.com/talks/natasha_hurley_walker_how_radio_telescopes_show_us_unseen_galaxies

Andrew Connolly: What's the next window into our universe?

Big Data is everywhere — even the skies. In an informative talk, astronomer Andrew Connolly shows how large amounts of data are being collected about our universe, recording it in its ever-changing moods. Just how do scientists capture so many images at scale? It starts with a giant telescope ...
https://www.ted.com/talks/andrew_connolly_what_s_the_next_window_into_our_universe

Patricia Burchat: Shedding light on dark matter

Physicist Patricia Burchat sheds light on two basic ingredients of our universe: dark matter and dark energy. Comprising 96% of the universe between them, they can't be directly measured, but their influence is immense.
https://www.ted.com/talks/patricia_burchat_leads_a_search_for_dark_energy

Playlist: Mind-bending questions from physics (5 talks)

Fascinating talks that seek to unravel some of the most fundamental, yet unexplainable parts of the cosmos.
Curated by TED · 5 talks
http://www.ted.com/playlists/mind_bending_questions_from_ph

Honor Harger: A history of the universe in sound

Artist-technologist Honor Harger listens to the weird and wonderful noises of stars and planets and pulsars. In her work, she tracks the radio waves emitted by ancient celestial objects and turns them into sound, including "the oldest song you will ever hear," the sound of cosmic rays left over from the Big Bang.
https://www.ted.com/talks/honor_harger_a_history_of_the_universe_in_sound

Tabetha Boyajian: The most mysterious star in the universe

Something massive, with roughly 1,000 times the area of Earth, is blocking the light coming from a distant star known as KIC 8462852, and nobody is quite sure what it is. As astronomer Tabetha Boyajian investigated this perplexing celestial object, a colleague suggested something unusual: Could it be an alien-built megastructure? Such an extraor...
https://www.ted.com/talks/tabetha_boyajian_the_most_mysterious_star_in_the_universe

Jonathan Butterworth: What's the smallest thing in the universe?

If you were to take a coffee cup, and break it in half, then in half again, and keep carrying on, where would you end up? Could you keep on going forever? Or would you eventually find a set of indivisible building blocks out of which everything is made? Jonathan Butterworth explains the Standard Model theory and how it helps us understand the wo...
https://www.ted.com/talks/jonathan_butterworth_what_s_the_smallest_thing_in_the_universe

Playlist: Everything you thought ... was wrong (12 talks)

12 counterintuitive talks to flip your thinking on everything from shoes to aid organizations to the universe.
Curated by TED · 12 talks
http://www.ted.com/playlists/everything_you_thought_was

Dimitar Sasselov | TED Speaker

Dimitar Sasselov works on uniting the physical and life sciences in the hunt for answers to the question of how life began.
Astronomer
https://www.ted.com/speakers/dimitar_sasselov

Stephen Webb: Where are all the aliens?

The universe is incredibly old, astoundingly vast and populated by trillions of planets -- so where are all the aliens? Astronomer Stephen Webb has an explanation: we're alone in the universe. In a mind-expanding talk, he spells out the remarkable barriers a planet would need to clear in order to host an extraterrestrial civilization -- and make...
https://www.ted.com/talks/stephen_webb_where_are_all_the_aliens
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