Our Universe : An Astronomers Guide (Pelican) (PB)

Jo Dunkley

Science

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On a clear night the sky above us is strikingly beautiful, filled with stars and lit by the bright and changing Moon. The darker our vantage point, the more stars come into view, numbering from the tens or hundreds into the many thousands. We can pick out the familiar patterns of the constellations and watch them slowly move through the sky as the Earth spins around. The brightest lights we can see in the night sky are planets, changing their positions night by night against the backdrop of the stars. Most of the lights look white, but with our naked eyes we can notice the reddish tint of Mars, and the red glow of stars like Betelgeuse in the Orion constella tion. On the clearest nights we can see the swathe of light of the Milky Way and, from the southern hemisphere, two shimmery smudges of the Magellanic Clouds.

Jo Dunkley

Jo Dunkley is a British astrophysicist and Professor of Physics at Princeton University. She works on the origin of the Universe and the Cosmic microwave background (CMB) using the Atacama Cosmology Telescope, the Simons Observatory and the Large Synoptic Survey Telescope . Her research is in cosmology, studying the chronology of the universe using the Atacama Cosmology Telescope, the Simons Observatory, and the Large Synoptic Survey Telescope (LSST). After her DPhil, she joined Princeton University as a postdoctoral research fellow in 2006, working with David Spergel and Lyman Page on NASA’s Wilkinson Microwave Anisotropy Probe (WMAP).[9][10] In an interview at Princeton in 2017, Spergel said she quickly "made major contributions to the analysis that led to the development of what we now think of as the standard model of cosmology." Soon after she began working with the European Space Agency (ESA) Planck satellite, which produced a higher-resolution view of the cosmic microwave background (CMB) compared to WMA