NASA launched its Active Magnetospheric Particle Tracer Explorers mission (AMPTE) from the Cape Canaveral launch pad.
Source
Russia's Mir Space Station was deorbited over the South Pacific Ocean.
Astronomer Richard Walker discovered Saturn's moon, Epimetheus.
NASA's Spitzer Space Telescope discovered a star with seven Earth-sized planets orbiting it.
Israel launched its first satellite, Ofek-1, from the Palmachim Air Base.
A Neptune-sized exomoon became the first one discovered outside the Solar System.
