Osiris became the first discovered exoplanet with an atmosphere.
It was found to have a hydrogen-rich atmosphere.
Source
The US spacecraft Pioneer 10 launched.
The International Astronomical Union named Pluto's fourth and fifth moons Kerberos and Styx.
The Apollo-Soyuz Test Project completed the world's first international space rendezvous.
NASA's Endeavour Space Shuttle was launched through Mission STS-61.
American Psychologist Timothy Leary and Star Trek creator Gene Roddenberry were launched into orbit after being cremated.
