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.
Further Reading
- Read more about this rogue world finding via Popular Science.
- Keep up with the latest findings from the James Webb Space Telescope via NASA.
Segment Transcript
The transcript of this segment is being processed. It will be available within one week after the show airs.
Meet the Producers and Host
About Rasha Aridi
@RashaAridiRasha Aridi is a producer for Science Friday. She loves stories about weird critters, science adventures, and the intersection of science and history.
About Rachel Feltman
Rachel Feltman is a freelance science communicator who hosts “The Weirdest Thing I Learned This Week” for Popular Science, where she served as Executive Editor until 2022. She’s also the host of Scientific American’s show “Science Quickly.” Her debut book Been There, Done That: A Rousing History of Sex is on sale now.