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Skip to contentDepartment of Earth, Environmental, and Planetary SciencesMenu Close Search Undergraduate ProgramGraduate ProgramPeopleAlumniFacilitiesCoursesProjected Course ScheduleAll Active CoursesResourcesResearch CentersLet your curiosity lead the way:Apply TodayHomeRecent NewsUpcoming EventsDiversity & InclusionHow to Reach Us Arts & Sciences Graduate Studies in A&SVenus UnXplainedBy Katie Vishion6.10.24 | FacultyShareVenus is our bright and beautiful planetary neighbor and a source of fascination for humans over many centuries. In a recent episode of The UnXplained: Mysteries of the Universe, William Shatner narrates us through an exploration of the planet. Associate Professor Paul Byrne from the Department of Earth, Environmental, and Planetary Sciences weighs in throughout the episode. He points out the similarities of Venus to Earth as well as the profound differences, shedding light on why some scientists refer to Venus as “Earth’s Evil Twin”. Paul Byrne head shot.png People Venus as a planet is about the same size and age as the Earth. They both orbit the Sun and are made up of many of the same materials. “We now know the surface conditions on Venus aren’t anything like they are on Earth. For example, the surface temperature is almost 800 degrees Fahrenheit. That is the same temperature your oven is on in its self-cleaning mode. The entire planet has a global layer of clouds made of sulfuric acid, and those clouds drop sulfuric acid rain. These conditions are more than enough to kill you in several ways simultaneously.” Byrne says.   There is another major difference. Because of the extremely slow rotation of Venus, one day is actually longer than one year on the planet. While Earth has our Moon orbiting and regulating our rotation, Venus has no moon. Venus also spins in the opposite direction of most other planets in our solar system and takes 243 Earth days to complete a full day. A year on Venus is only 225 Earth days. The possibility that Venus was more habitable and Earth-like in the past isn’t just science fiction. There is a real possibility that 1-2 billion years in the past it may have been a kinder atmosphere and terrain. Experts are theorizing Venus’s cloud-layer contains life. Some even wonder, if we could get the science and technology just right, will humans be sent to Venus? Perhaps studying from blimps, living among the clouds? To watch Professor Byrne and other planetary scientists tackle the science of Venus’ past and what the future of exploration on Venus could be watch The UnXplained: Mysteries of the Universe Season 1, Ep. 4 Venus: Earth's Evil Twin. Available now on the History Channel app and Prime Video.   Header Image Credit: Venus from the Spacecraft Magellan. NASA Images Jump to Top | Back to Allin the news:6.13.24Department of Earth, Environmental, and Planetary Sciences hiring Research Professor6.5.24Rivers of lava on Venus reveal a more volcanically active planet6.4.24Earth’s ‘Gateway to Hell’ is growing6.1.24What does a meteorite taste like? Someone found out and bottled it.Read more newsQuick LinksFacilitiesResearch CentersDiversity & InclusionCoursesOur AlumniHow to Reach UsComputer SupportResourcesAdditional information Arts & Sciences Graduate Studies in A&SCopyright 2024 by:Arts & Sciences at Washington University in St. LouisFollow Us Instagram Twitter Contact Us: Earth, Environmental, and Planetary Sciences [email protected] 314-935-5610 Visit the main Washington University in St. Louis website1 Brookings Drive / St. Louis, MO 63130 / wustl.edu