Dr. Brian Keating

Then it was Copernicus who had ideas but couldn't prove them. He had no data to substantiate the Copernican or sun-centered model of the universe, which is Also, by the way, you know, almost everything in science is wrong, right? Copernicus is wrong. The sun is not the center of the solar system, right?

Then it was Copernicus who had ideas but couldn't prove them. He had no data to substantiate the Copernican or sun-centered model of the universe, which is Also, by the way, you know, almost everything in science is wrong, right? Copernicus is wrong. The sun is not the center of the solar system, right?

Then it was Copernicus who had ideas but couldn't prove them. He had no data to substantiate the Copernican or sun-centered model of the universe, which is Also, by the way, you know, almost everything in science is wrong, right? Copernicus is wrong. The sun is not the center of the solar system, right?

So then you come up to – after him, Kepler discovered the laws of the elliptical motion of planets and their patterns that we still use. We discovered an exoplanet. My colleague David Kipping, I want to introduce you to. He has discovered exomoons.

So then you come up to – after him, Kepler discovered the laws of the elliptical motion of planets and their patterns that we still use. We discovered an exoplanet. My colleague David Kipping, I want to introduce you to. He has discovered exomoons.

So then you come up to – after him, Kepler discovered the laws of the elliptical motion of planets and their patterns that we still use. We discovered an exoplanet. My colleague David Kipping, I want to introduce you to. He has discovered exomoons.

These are moons around other planets, some of which are in the habitable zone of their host star and some of them have sun-like stars and are earth-sized planets. It's incredible. There could be, as I said, a link between life evolving on Earth due to the moon on our planet. So too, on an exoplanet, it could require an exomoon, which he's discovered or thinks he has.

These are moons around other planets, some of which are in the habitable zone of their host star and some of them have sun-like stars and are earth-sized planets. It's incredible. There could be, as I said, a link between life evolving on Earth due to the moon on our planet. So too, on an exoplanet, it could require an exomoon, which he's discovered or thinks he has.

These are moons around other planets, some of which are in the habitable zone of their host star and some of them have sun-like stars and are earth-sized planets. It's incredible. There could be, as I said, a link between life evolving on Earth due to the moon on our planet. So too, on an exoplanet, it could require an exomoon, which he's discovered or thinks he has.

He's actually very cautious and hasn't said it explicitly. So Kepler's laws underpin all those discoveries, even to this day, 400 years later. Then Galileo, immediately afterwards with the telescope, phases of Venus that only occur if the Earth is not the center of the solar system. The rings of Saturn, he had notions about those. He accidentally discovered the planet Neptune. It's amazing.

He's actually very cautious and hasn't said it explicitly. So Kepler's laws underpin all those discoveries, even to this day, 400 years later. Then Galileo, immediately afterwards with the telescope, phases of Venus that only occur if the Earth is not the center of the solar system. The rings of Saturn, he had notions about those. He accidentally discovered the planet Neptune. It's amazing.

He's actually very cautious and hasn't said it explicitly. So Kepler's laws underpin all those discoveries, even to this day, 400 years later. Then Galileo, immediately afterwards with the telescope, phases of Venus that only occur if the Earth is not the center of the solar system. The rings of Saturn, he had notions about those. He accidentally discovered the planet Neptune. It's amazing.

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.