Dr. Brian Keating

And then he – of course the moons of Jupiter falsified the notion that the Earth is the center of the solar system because these moons are going around Jupiter, not around the Earth. So that's completely torpedoed the notion of the true nature of the Aristotelian or Ptolemaic Earth-centered cosmology.

And then he – of course the moons of Jupiter falsified the notion that the Earth is the center of the solar system because these moons are going around Jupiter, not around the Earth. So that's completely torpedoed the notion of the true nature of the Aristotelian or Ptolemaic Earth-centered cosmology.

And then he – of course the moons of Jupiter falsified the notion that the Earth is the center of the solar system because these moons are going around Jupiter, not around the Earth. So that's completely torpedoed the notion of the true nature of the Aristotelian or Ptolemaic Earth-centered cosmology.

Then soon after that, astronomers measured things like the speed of light using eclipses of moons of Jupiter. They measured distances to Saturn. They mapped out the solar system. And then from there, using parallax, you can kind of gauge the triangulation and using trigonometry, measure the structure of our galaxy.

Then soon after that, astronomers measured things like the speed of light using eclipses of moons of Jupiter. They measured distances to Saturn. They mapped out the solar system. And then from there, using parallax, you can kind of gauge the triangulation and using trigonometry, measure the structure of our galaxy.

Then soon after that, astronomers measured things like the speed of light using eclipses of moons of Jupiter. They measured distances to Saturn. They mapped out the solar system. And then from there, using parallax, you can kind of gauge the triangulation and using trigonometry, measure the structure of our galaxy.

William Herschel and his sister, Caroline Herschel, was the first female astronomer, first female scientist. She was the first person to use the scientific method and become a fellow of the Royal Society. in Great Britain.

William Herschel and his sister, Caroline Herschel, was the first female astronomer, first female scientist. She was the first person to use the scientific method and become a fellow of the Royal Society. in Great Britain.

William Herschel and his sister, Caroline Herschel, was the first female astronomer, first female scientist. She was the first person to use the scientific method and become a fellow of the Royal Society. in Great Britain.

And then later off after that, we come to the era of the last, you know, kind of the big developments in technology were photographic plates after that, spectrographs, dispersion of light onto photographic material. You could preserve it in memory. You didn't use sketches like Galileo did.

And then later off after that, we come to the era of the last, you know, kind of the big developments in technology were photographic plates after that, spectrographs, dispersion of light onto photographic material. You could preserve it in memory. You didn't use sketches like Galileo did.

And then later off after that, we come to the era of the last, you know, kind of the big developments in technology were photographic plates after that, spectrographs, dispersion of light onto photographic material. You could preserve it in memory. You didn't use sketches like Galileo did.

And then up until Hubble, when Hubble discovered two major things, which was one was that the Milky Way was a galaxy. It wasn't the entire universe. There were other galaxies, island universes of billions of stars. And then he discovered the expansion of the universe with help from an astronomer who doesn't get a lot of attention. A lot of the women in astronomy got really short shrift.

And then up until Hubble, when Hubble discovered two major things, which was one was that the Milky Way was a galaxy. It wasn't the entire universe. There were other galaxies, island universes of billions of stars. And then he discovered the expansion of the universe with help from an astronomer who doesn't get a lot of attention. A lot of the women in astronomy got really short shrift.

And then up until Hubble, when Hubble discovered two major things, which was one was that the Milky Way was a galaxy. It wasn't the entire universe. There were other galaxies, island universes of billions of stars. And then he discovered the expansion of the universe with help from an astronomer who doesn't get a lot of attention. A lot of the women in astronomy got really short shrift.

People discovered how fusion works in the sun. Women got at Harvard. And then Henrietta Leavitt, who measured this relationship between the size and brightness of objects called Cepheid variables that Hubble then used to make his law that proved that the universe is expanding.

People discovered how fusion works in the sun. Women got at Harvard. And then Henrietta Leavitt, who measured this relationship between the size and brightness of objects called Cepheid variables that Hubble then used to make his law that proved that the universe is expanding.

People discovered how fusion works in the sun. Women got at Harvard. And then Henrietta Leavitt, who measured this relationship between the size and brightness of objects called Cepheid variables that Hubble then used to make his law that proved that the universe is expanding.

And then after that, people like Pennsies and Wilson discovering the microwave and radio astronomy, Robert Jansky, all the way up until my colleagues today, some of whom I've interviewed, Adam Ries and Brian Schmidt and Barry Barish.

And then after that, people like Pennsies and Wilson discovering the microwave and radio astronomy, Robert Jansky, all the way up until my colleagues today, some of whom I've interviewed, Adam Ries and Brian Schmidt and Barry Barish.