Sky & Telescope Associate Editor Sean Walker and Contributing Editor Stephen James O’Meara accompanied nine adventurers on a stargazing safari for an immersive experience in the African bush in Botswana.
What do extreme icy moons in the Solar System and unruly water behavior have to do with each other? That's what scientists at University of Sheffield in England wanted to know. So, they simulated conditions at Europa and Enceladus in the lab. Europa orbits Jupiter and Enceladus circles Saturn. Both have frozen surfaces and internal oceans of salty water. That water plays a huge role in resurfacing and reshaping these icy moons. That process is called cryovolcanism and it shows that water behaves much differently "out there" than it does here on Earth, where it freezes below 0 C and boils above 100 C.
