When Nicolaus Copernicus was born in 1473, scholars believed that the earth stood still, and the sun circled around it. Copernicus devoted his life to understanding the structure of our solar system, and found mathematical proof that the earth, in fact, orbits around the sun. Although he didn’t live to see his influence on astronomy, his findings opened the ... Show More
Apr 2024
Galilée a-t-il le premier prouvé que la Terre tourne autour du Soleil ?
<p>On entend souvent dire que Galilée, né à Pise en 1564, a découvert que la Terre tournait autour du Soleil. En fait, il fut un fervent défenseur de cette thèse, appelée "héliocentrisme", au point d'avoir subi les foudres de l'Église catholique, qui lui a intenté un célèbre proc ... Show More
2m 3s
Jun 2009
Telescopes that Rocked Our World
<p>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 ... Show More
56 m
Aug 2021
Lucy in the Sky With Asteroids
How did the planets form? How did life happen? Where did Earth’s water come from? To answer questions like these, scientists used to go big—looking at planets, dwarf planets, and moons—but now small is the new big. Technology is zooming in on the pint-size stuff—asteroids, comets ... Show More
30m 51s
Feb 2024
Exploring solar eclipses through time
<p>This week on Planetary Radio, we delve into the evolution of humanity's relationship with one of our planet's most awe-inspiring phenomena: total solar eclipses. Ed Krupp, the director of Griffith Observatory in Los Angeles, will share insights from the fascinating field of ar ... Show More
52m 8s