IBEX is a NASA spacecraft studying how our heliosphere, the magnetic bubble surrounding our Sun and planets, interacts with interstellar space. IBEX created the first maps showing the interactions at that border, and how they change

Aquarius is making NASA’s first space-based global observations of ocean surface salinity, flying 657 kilometers (408 miles) above Earth in a sun-synchronous polar orbit that repeats every seven days. This NASA Earth System Science Pathfinder mission