# Carolin Crawford
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Carolin Susan Crawford is a British communicator of science, astrophysicist researcher, lecturer and Public Astronomer based at the Institute of Astronomy, Cambridge and a supernumerary fellow of Emmanuel College, Cambridge.
== Education ==
Crawford studied the Mathematical Tripos and received a Bachelor of Arts honours degree in Mathematics at Newnham College, Cambridge in 1985. In 1988 she received her PhD for research undertaken at the Institute of Astronomy, Cambridge on cooling flows supervised by Andrew Fabian.
Dark Energy
Melvyn Bragg and guests discuss 'dark energy'. Only 5% of our universe is composed of visible matter, stars, planets and people; something called 'dark matter' makes up about 25% and an enormous 70% of the universe is pervaded with the mysteriously named 'dark energy'. It is a recent discovery and …
The Planets
Melvyn Bragg and guests discuss our knowledge of the planets in both our and other solar systems. Tucked away in the outer Western Spiral arm of the Milky Way is a middle aged star, with nine, or possibly ten orbiting planets of hugely varying sizes. Roughly ninety-two million miles and third in li…
Jupiter
Jupiter is the largest planet in our solar system, and it’s hard to imagine a world more alien and different from Earth. It’s known as a Gas Giant, and its diameter is eleven times the size of Earth’s: our planet would fit inside it one thousand three hundred times. But its mass is only three hundr…
Mercury
Melvyn Bragg and guests discuss the planet which is closest to our Sun. We see it as an evening or a morning star, close to where the Sun has just set or is about to rise, and observations of Mercury helped Copernicus understand that Earth and the other planets orbit the Sun, so displacing Earth f…
Mercury
Melvyn Bragg and guests discuss the planet which is closest to our Sun. We see it as an evening or a morning star, close to where the Sun has just set or is about to rise, and observations of Mercury helped Copernicus understand that Earth and the other planets orbit the Sun, so displacing Earth f…
The Moon (Archive Episode)
After 27 years, Melvyn Bragg has decided to step down from the In Our Time presenter’s chair. With over a thousand episodes to choose from, he has selected just six that capture the huge range and depth of the subjects he and his experts have tackled. In this first pick, we hear Melvyn Bragg and hi…
Eclipses (Archive Episode)
To celebrate Melvyn Bragg’s 27 years presenting In Our Time, five well-known fans of the programme have chosen their favourite episodes. Guy Garvey, lyricist and lead singer of the band Elbow, has selected the episode on eclipses, first broadcast in December 2020. Solar eclipses are some of life’s …
Clusters Of Galaxies - Professor Carolin Crawford
Clusters of galaxies are the largest organised structures in the Universe that appear gravitationally bound, containing thousands of galaxies all confined to a volume of space only tens of millions of light years across. They are laboratories for extreme galaxy evolution, as many of the processes t…
Large Telescopes And Why We Need Them - Professor Carolin Crawford
Beyond the Solar System, all astronomers have to work with is the light that falls to the Earth from distant cosmic objects. Newer, larger telescopes are always needed to boost scientific progress, and the next generation of facilities - whether the 42m diameter optical-infrared Extremely Large Tel…
Star Dust - Professor Carolin Crawford
Interstellar space is not truly a vacuum devoid of matter. Mixed into vast diffuse clouds of atomic gas are minute grains of silicate and carbonate materials known as 'dust', alongside complex molecules deep in the cold hearts of nebulae. We shall look at how we can detect and observe this tenuous …
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