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

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4.1 • 11.9K Ratings

🗓️ 7 June 2019

⏱️ 12 minutes

🔗️ Recording | iTunes | RSS

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Summary

Humans have been studying the stars for thousands of years, but astrophysicist Juna Kollmeier is on a special mission: creating the most detailed 3-D maps of the universe ever made. Journey across the cosmos as she shares her team's work on the Sloan Digital Sky Survey, imaging millions of stars, black holes and galaxies in unprecedented detail. If we maintain our pace, she says, we can map every large galaxy in the observable universe by 2060. "We've gone from arranging clamshells to general relativity in a few thousand years," she says. "If we hang on 40 more, we can map all the galaxies."

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Transcript

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0:00.0	This TED Talk features theoretical astrophysicist Juna Coleman
0:05.0	recorded live at TED 2019.
0:10.0	When I was a kid, I was afraid of the dark.
0:15.0	The darkness is where the monsters are.
0:18.0	And I had this little nightlight outside of my bedroom
0:23.6	so that it would never get too dark.
0:26.6	But over time, my fear of the dark turned to curiosity.
0:32.6	What is out there in the dark dark?
0:36.6	And it turns out,
0:38.3	they're trying to understand the darkness,
0:41.3	something that's fascinated humans for thousands of years, maybe forever.
0:46.3	And we know this because we find their ancient relics
0:51.3	of their attempts to map the sky.
0:53.3	It's our calling card as a space of their attempts to map the sky.
1:00.0	It's our calling card as a species in the galaxy to figure things out.
1:03.0	We know our planet.
1:05.0	We cure our diseases.
1:07.0	We cook our food.
1:09.0	We leave our planet.
1:13.3	But it's not easy.
1:17.4	Understanding the universe is battle.
1:19.9	It is unrelenting.
	...

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