Pavel Wisneski, DOC, Exeter University discussed on Science in Action
And this can tell us about the story of the volition of these exit atmospheres, and perhaps can tell us how long an earth sized planet around a small. Doc could hold onto atmosphere as you say, earth has lost its original primordial helium. And presumably if there had been astronomers on another planet far, far away four and a half billion years ago, they could've looked at our son at lawmen lock his emission lines and looked at our escaping helium to, I think early on in the stages of the tenants lifetime when it still has that large hydrogen helium envelope, even for small earth-like planets isn't that see some of the what we hope to do in the future to target very young on its and see that primordial atmosphere, escaping in action, Jessica speak of Exeter university. Now, I Catholic chose my words little earlier. Helium makes up twenty five percent of the loan stuff of the universe. But if you've been paying attention to science in action, you'll surely know that hydrogen helium all the other elements only make up four percent of all the stuff in the universe. That's six times as much stuff that's loosely called dark matter south that will never. Show up in a spectra scope, no matter how well it's made. Instead, physicists hoping that one day a peaceful calling by picking on an atom as it flies through their labs that could reveal his presence, but it hasn't happened yet. So they keep making bigger and better experiments improve the chances and money Chesterton your here because you've been watching one of those in progress. Hello? Roland? Yes, I'm here because I wanted to tell you about a cry stat, which is basically just a massive flask that's going to hold this experiments. Go picture that coffee pot a bit like that is four meters tall and about two meters across. And it's made a play tiny. That's Pavel Wisneski.