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13:32

Karin Öberg

The galactic recipe for a living planet

Posted Apr 2020
15:34

Enrico Ramirez-Ruiz

Your body was forged in the spectacular death of stars

Posted Dec 2019
13:28

Kelsey Johnson

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

Posted Dec 2019
13:52

Mike Brown

The search for our solar system's ninth planet

Posted Nov 2019
15:10

David Deutsch

After billions of years of monotony, the universe is waking up

Posted Oct 2019
5:15

Lorin Swint Matthews

The dust bunnies that built our planet

Posted Sep 2019
14:13

Juna Kollmeier

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

Posted Jun 2019
13:15

Alexander MacDonald

How centuries of sci-fi sparked spaceflight

Posted Apr 2019
4:39

Rene Laufer

How far would you have to go to escape gravity?

Posted Nov 2018
4:58

Fabio Pacucci

Could the Earth be swallowed by a black hole?

Posted Sep 2018
5:44

Sajan Saini

What is the universe expanding into?

Posted Sep 2018
13:18

Stephen Webb

Where are all the aliens?

Posted Jul 2018
21:30

Gwynne Shotwell

SpaceX's plan to fly you across the globe in 30 minutes

Posted Apr 2018
13:42

Dave Brain

What a planet needs to sustain life

Posted Aug 2016
10:58

Allan Adams

What the discovery of gravitational waves means

Posted Feb 2016
15:38

Wendy Freedman

This telescope might show us the beginning of the universe

Posted Aug 2015
11:48

Alex Wissner-Gross

A new equation for intelligence

Posted Feb 2014
3:58

Marjee Chmiel and Trevor Owens

Is there a center of the universe?

Posted Jun 2013
8:05

John Lloyd

An animated tour of the invisible

Posted Sep 2012
7:53

Jon Nguyen

Tour the solar system from home

Posted Jun 2012
18:40

Seth Shostak

ET is (probably) out there — get ready

Posted Jun 2012
10:08

Karen Bass

Unseen footage, untamed nature

Posted May 2012
21:47

Brian Greene

Is our universe the only universe?

Posted Apr 2012
12:07

Chris Anderson (TED)

Questions no one knows the answers to

Posted Mar 2012
15:54

Sean Carroll

Distant time and the hint of a multiverse

Posted May 2011
17:40

David Christian

The history of our world in 18 minutes

Posted Apr 2011
16:38

David Deutsch

A new way to explain explanation

Posted Oct 2009
17:26

Martin Rees

Is this our final century?

Posted Jan 2007
19:00

David Deutsch

Chemical scum that dream of distant quasars

Posted Sep 2006
21:56

Richard Dawkins

Why the universe seems so strange

Posted Sep 2006
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