How do signals get jammed?

Daniel and Kelly answer questions about aliens watching Earth, about lone species, and about the size limits of intelligence.See omnystudio.com/listener for privacy information. 

Parasites can have amazingly complicated life cycles - moving through a series of host species, and looking quite different while residing within each type of host. Frankly, this stumped scientists for a long time. In today's episode, Daniel and Kelly take a stroll through the hi ... Show More

Daniel and Kelly explain the nature of the quantum vacuum, whether its real or philosophical, and if it's possible to use to make your toast.See omnystudio.com/listener for privacy information. 

Are we morally obligated to pursue space exploration? What ethical considerations should we consider when creating space policy? Philosopher James Schwartz joins the show to address these questions and talk about his new book, The Value of Science in Space Exploration. Learn more ... Show More

Funding cuts and research censorship have shaken the foundations of America’s health and science agencies, leaving researchers shocked, confused, and afraid. What does this mean for the future of science? For show transcripts, go to vox.com/unxtranscripts For more, go to vox.com/ ... Show More

Is there life out there in the cosmos? Jorge talks to scientists about whether we are truly alone in the Universe.See omnystudio.com/listener for privacy information. 

Space junk. It might sound like an out-of-this-world problem that we don’t need to worry about here on Earth – but is it? As we send more and more metal in the form of satellites up into space, scientists are warning it is becoming more of a risk both here – and up there. We dig ... Show More

The microbes that live in and on our bodies will colonize a human-manned spacecraft to Mars—but will the spacecraft's microbiome be safe? Christopher Intagliata reports. Learn more about your ad choices. Visit megaphone.fm/adchoices 

A paper published by the Centers for Disease Control and Prevention argues that Chagas disease is now endemic in the U.S. Koalas may finally be spared from a deadly epidemic. Meanwhile NASA’s Perseverance Mars rover has uncovered tantalizing clues about potential ancient microbia ... Show More

Funding cuts and research censorship have shaken the foundations of America’s health and science agencies, leaving researchers shocked, confused, and afraid. In this episode of Unexplainable, we ask, what does this mean for the future of science? This episode was hosted and produ ... Show More

The European Space Agency recently announced that the near-Earth asteroid 2024 YR4 has a 2 percent chance of hitting our planet in 2032. The probability of impact is difficult to predict exactly and will be clearer in 2028, when 2024 YR4 will whiz by us. But if the asteroid reall ... Show More

NASA found a Martian rock that might have traces of ancient life. It's perhaps the most tantalizing revelation in the century-long search for Martian life. (Updated from 2022) Guests: Katie Stack Morgan, project scientist for the Perseverance rover; Lindsay Hays, astrobiologist a ... Show More

This time Dr Becky Smethurst and Izzie Clarke discover why it’s touch and go when it comes to returning asteroid samples to Earth and hear how we’ve been exchanging spit with Mars since the dawn of the Solar System. The team is joined by Dr Sara Russell, a meteorite researcher at ... Show More