Q&A: Going Skydiving on Mars and More...

Is there an RSS feed? Specifically for the audio. Not that I mind the videos, just i listen while working and don't need the video. the old RSS link I had was for video and isn't updating.

Seeing a lot of pseudo science out there these days between people not getting vaccinated, climate change denial, and flat earthers. What do you think causes this distrust of science and how do we as the pro-science community help build that trust?

Fraser, you just stated that in the mass:energy calc, there was probably less energy (and hence more mass) in the early universe than there is today. Are you certain of that? I would have guessed just the opposite -- but I'm not scientist by any stretch.

Question: We're finding out a lot about the physiological problems associated with prolonged exposure of humans to zero gravity. In the Mars movie and 2001 they solved the zero gravity issue with large revolving habitats to create artificial gravity. How big would such an artificial gravity structure have to be and how difficult/expensive to assemble in space?