The first crew arrived at the International Space Station onboard a Soyuz spacecraft.
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Astronomer Richard Walker discovered Saturn's moon, Epimetheus.
Space welcomed its first tourist from Earth.
Kepler's Supernova was discovered.
NASA launched its Active Magnetospheric Particle Tracer Explorers mission (AMPTE) from the Cape Canaveral launch pad.
The International Astronomical Union named Pluto's fourth and fifth moons Kerberos and Styx.
