Flora Lichtman

speaker
5,343 appearances 86 recordings 2 series first heard Apr 2026 last heard 3d ago

Flora Lichtman’s voice in public audio — every appearance, attributed to the second.

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recordings per month · last 12 months
18 · Jul OctJan 26AprJulnow

Recordings per month over the last 12 months — 86 in all, peaking in Jul 2026 with 18.

Appearances

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Science Friday · Peering through dust clouds to the center of the galaxy · 22 Jul 2026 podcast
And the center is hard to see because interstellar dust blocks our view. voice-verified
And so for a long time, just what was there was a matter of debate. voice-verified
Dr. Andrea Ghez developed a way to peer through that dust, allowing precise observations of the orbits of stars close to the galactic center. voice-verified
And what she found in the center of our own galaxy was a supermassive compact object, which has all the hallmarks of a supermassive black hole. voice-verified
She shared the Nobel Prize in 2020 with Reinhard Genzel for the discovery. voice-verified
Today, we're going to talk to Andrea Ghez about this game-changing discovery, what we've learned about the Galactic Center since, and her own orbit in science. voice-verified
Andrea is a professor of physics and astronomy at UCLA, where she heads UCLA's Galactic Center group. voice-verified
And she's with me now. voice-verified
Welcome. voice-verified
Do we know what a black hole is? voice-verified
That comes as a surprise to me because I feel like we use the shorthand a lot for not knowing exactly what it is. voice-verified
I want to get into that. voice-verified
I mean, why did you originally pick this problem of what was in the center of our galaxy? voice-verified
Was there drama around it? voice-verified
Like when you say it was percolating, were people arguing at meetings? voice-verified
What was the level of percolation? voice-verified
The citation for the Nobel is for a supermassive compact object that looks a lot like a black hole. voice-verified
I'm paraphrasing. voice-verified
Well, give me some details on that. voice-verified
So when you say it has to be smaller, like how much mass and at what size? voice-verified
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