Regina Barber

speaker

5,577 appearances 194 recordings 8 series first heard Nov 2024 last heard 2d ago

Regina Barber’s voice in public audio — every appearance, attributed to the second.

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recordings per month · last 12 months

Recordings per month over the last 12 months — 126 in all, peaking in Aug 2026 with 33.

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So they used that modeling and a larger sample of insects to get a number. voice-verified

So scientists wanted to know how many species of insects existed on the entire planet. voice-verified

And the best estimate to this point, based on studies of beetles, is that there are roughly 6 million. voice-verified

Yeah, between 14 and 20 million at minimum. voice-verified

So up to three times as many species as previously believed. voice-verified

Here's Melissa again. voice-verified

Yeah. voice-verified

So they are blazing bright centers of galaxies. voice-verified

And at the center of that is a supermassive black hole, millions of billions of times the mass of our sun. voice-verified

And dust and gas is spiraling into that black hole. voice-verified

It heats up and starts to glow. voice-verified

Yeah. voice-verified

So that's Daming Yang. voice-verified

He's the first author of the study out this week in the journal Astronomy and Astrophysics, which reports the discovery of 31 quasars. voice-verified

And these are among the oldest quasars ever found. voice-verified

And before this study, astronomers only knew a handful of quasars this old. voice-verified

Yeah. voice-verified

So these quasars are from like soon after the Big Bang. voice-verified

They're much bigger and brighter than astronomers would expect them to be that early in the universe. voice-verified

So Daming says there's a lot of questions about how they got so big so fast. voice-verified

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