Physicists sometimes study matter under extreme conditions. For example, think of the emptiness of interstellar space vs. the unimaginable crush of pressure at the center of a neutron star, or an object dipped in liquid nitrogen vs. the...

The goal of this electricity and electronics science fair project is to understand how ions are used to propel spacecraft in space, and to use a NASA online simulator to design your own ion engine. The Science Buddies project ideas are...