The adaptation of Andy Weir’s best-selling novel succeeds by making us care about its hero, a sartorially challenged teacher ...
The “alien” is actually a potato. Specifically, it is a purple tuber nicknamed Spudnik-1, grown and photographed by Pettit.
This video explains the periodic table, containing all the known elements arranged in groups and periods. Elements in the same group of the periodic table show trends in physical properties, such as ...