How to make a Milky Way: the ultimate galacti...

Steve Brusatte knows every bird today is a living dinosaur, and as a paleontologist, he can tell you how that happened. Steve joins Hakeem to walk through the catastrophic asteroid impact 66 million years ago that ended the age of T. rex, and to explain why one small, beaked, see ...  Show more

Steve Brusatte says T. rex wasn’t always the king, and as a paleontologist, he has spent his career uncovering how it got to the top of the food chain. Steve joins Hakeem to trace the full 100-million-year history of the tyrannosaur family, from its surprisingly small and nimble ...  Show more

This year marks the 400th anniversary of Galileo’s use of the first telescope. On this week’s show, we reflect on how telescopes have shifted our perspective on how small we are in size, space, and time. We also discuss how they help astronomers discover new and interesting as ...

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 m ...  Show more

Shedding light on the deepest depths of the universe is Gerry Gilmore, who talks about the Big Bang and the mystery of dark matter. We also hear from Peter Muller and Giulio del Zanna about 3-D imaging of the surface of Mars and how solar flares contribute to everything from the ...  Show more

By dating nearly a quarter-million stars, astronomers were able to reconstruct the history of our galaxy—and they say it has lived an “enormously sheltered life.” Learn more about your ad choices. Visit megaphone.fm/adchoices