Astro-Chat: Venus – Earth’s Evil Twin

Science views

an astro-chat with

Professor Don Kurtz

Visiting Professor, School of Mathematics and Physics, University of Lincoln, UK

Friday, 30 July 2021

7:00-8:00 pm

Live online

Book a place

Venus is the beautiful, bright “evening star” I can see now from South Africa. It is more difficult for those of you in Lincoln at high northern latitudes. Venus is not a star. It is a rocky planet that is a near twin to our Earth in size. But it is 30% closer to the Sun, and therein lies all the difference. Venus’s atmosphere is 96% Carbon Dioxide (CO2), the potent greenhouse gas that is causing climate change here on Earth, where it makes up only 0.04% of the atmosphere. Venus is the hottest planet in the solar system – 460 C! The thick atmosphere has a surface pressure 90 times that here on Earth at sea level. The clouds…

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