Do gravitational waves leave a mark on the Un...

Daniel and Kelly explore the structure of the space between solar systems and reveal our cosmic context.See omnystudio.com/listener for privacy information. 

Daniel and Kelly talk about the challenges of hot fusion and the frustrated potential of cold fusion. And Keanu Reeves.See omnystudio.com/listener for privacy information. 

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What happens when a real-life astronaut turns to fiction? In this episode, Chris Hadfield shares how decades of spaceflight and global diplomacy inspired his latest novel, Final Orbit, a cold war thriller packed with historical intrigue and technical precision. Host Rachel Feltma ...  Show more

Nothing escapes a black hole … or does it? In the 1970s, the physicist Stephen Hawking described a subtle process by which black holes can “evaporate,” with some particles evading gravitational oblivion. That phenomenon, now dubbed Hawking radiation, seems at odds with general ...

The Gaia spacecraft stopped collecting data this January after about 11 years and more than three trillion observations. Senior space and physics editor Lee Billings joins host Rachel Feltman to review Gaia’s Milky Way–mapping mission and the tidal streams, black holes and astero ...  Show more