Yellowstone volcano: Why USGS scientists were 'very NERVOUS' after INCREASED activity YELLOWSTONE volcano scientists experienced a “very nervous time” during a period of increased activity, it was revealed during a lecture. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:NASA’s New Horizons Mission to Release New Pictures of Ultima ThuleWhere Doulas Calm Nerves and Bridge Cultures During ChildbirthSpace bombshell: Furthest world ever studied may unlock THIS secret about solar systemExpert reveals REAL reason male contraceptive pill is not yet available - 'MAIN challenge'A HUGE chunk of the Earth’s crust is MISSING – and experts now know whyCritic’s Notebook: Are Animals Getting Better at Acting?