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Did you know that almost every star you see in the night sky has at least one planet orbiting it?Here's something even wilder: There are some celestial bodies that look a lot like planets, but just float around freely in the cosmos, unattached to any particular star. They're called rogue worlds. With data from the James Webb Space Telescope, astrophysicists just identified six right here in our own Milky Way galaxy.So what can we learn from these rogue worlds? Can they teach us anything about how stars and planets are formed? Guest host Rachel Feltman talks with two authors of the recent study: Assistant Research Scientist Dr. Adam Langeveld, and Professor of Physics and Astronomy Dr. Ray Jayawardhana, both of Johns Hopkins University in Baltimore, Maryland.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.
Cornell Professor Dr. Ray Jayawardhana studies exoplanets, planets that orbit a celestial body outside of Earth's solar system, with the school's astronomy department. He is visiting Boise State University Friday for the Physics Department's First Friday Astronomy Event. Idaho Matters talks to Dr. Jayawardhana about his research and the importance of space exploration.
This week we're learning about some of the many invisible particles that surround us. We'll speak to astrophysicist Ray Jayawardhana about his book "Neutrino Hunters: The Thrilling Chase for a Ghostly Particle to Unlock the Secrets of the Universe." And we'll talk to ecology professor Donald Canfield about his book "Oxygen: A Four Billion Year History."
Trillions of subatomic particles called neutrinos are zipping through our bodies every second of every day. On this episode, Dr. Ray Jayawardhana discussed the hunt for neutrinos.
Even in the world of physics, celebrity culture often rules. We’ve all heard about the search for the so called God particle, the Higgs Boson and the large Hadron Collider.Yet those in the know, in the astrophysics community, have had their eyes focused on another subatomic particle, the Neutrino. These may really possess the secrets to the inner workings of the planet and the universe. Ray Jayawardhana is one of our leading astrophysicist and in Neutrino Hunters: he looks into this ghostly particle to unlock the secrets of the universe.My conversation with Ray Jayawardhana:
The Higgs boson has been discovered, providing the final piece of the jigsaw puzzle for the Standard Model of particle physics, a description of how the universe works. But what physicists haven't found yet, which they should have, are supersymmetry or SUSY particles. Roland Pease attended a recent meeting of top physicists, and shares with Adam Rutherford the latest discussions about where to look next.The history of neutrinos is littered with interesting characters. It was Wolfgang Pauli who first suggested their existence. Pauli was so unsettled by his proposal that he bet a case of champagne against anyone being able to discover these "pathologically shy" particles. Since then, scientists have built ever more elaborate experiments to try and detect these particles. Ray Jayawardhana, Professor of Astrophysics and author of a new book "The Neutrino Hunters" explains more about the most abundant particle in the universe.This week's Show Us Your Instrument is a tool used to help scientists measure the glaciers in the Antarctic. Julian Dowdeswell, a glaciologist from the University of Cambridge, uses an echo-locator to look at the dynamics of large ice masses and their response to climate change.Fungi, not viewed favourably by gardeners, can be good for rainforest biodiversity. Dr Owen Lewis from Oxford University tells Melissa Hogenboom that plots sprayed with fungicide soon become dominated by a few species at the expense of many others, leading to a marked drop in diversity.A mysterious illness killing dogs has been in the headlines this week. David Walker a veterinary specialist, says that although it's not clear what's causing the disease, people should not panic.
Astronomer Ray Jayawardhana is author of "Strange New Worlds", which is about our search for new planets and alien life. In the last 15 years, astronomers have discovered hundreds of new planetary systems and if some of these planets have life-sustaining properties, then they may support alien life, even if only at the bacterial level.
Astronomer Ray Jayawardhana is author of "Strange New Worlds", which is about our search for new planets and alien life. In the last 15 years, astronomers have discovered hundreds of new planetary systems and if some of these planets have life-sustaining properties, then they may support alien life, even if only at the bacterial level.
Author and astronomer Ray Jayawardhana discusses Alien Planets and his latest book Strange New Worlds. The lecture focuses on techniques for detecting planets orbiting distant stars.
Author and astronomer Ray Jayawardhana discusses Alien Planets and his latest book Strange New Worlds. The lecture focuses on techniques for detecting planets orbiting distant stars.
Author and astronomer Ray Jayawardhana discusses Alien Planets and his latest book Strange New Worlds. The lecture focuses on techniques for detecting planets orbiting distant stars.