NASA's Voyager 2 spacecraft made its closest approach to Uranus, the only close-up visit to the planet ever conducted, revealing rings, moons, and a tilted magnetic field.

A day after the Challenger disaster, Americans held vigils and NASA began the grim work of recovery as investigators started piecing together what went wrong.

NASA delayed the Challenger shuttle launch by a day due to a stuck bolt and weather concerns, pushing the fateful liftoff to January 28.

The Space Shuttle Challenger broke apart 73 seconds after launch, killing all seven astronauts including teacher Christa McAuliffe.

Ferdinand Marcos fled the Philippines after millions of citizens joined the peaceful EDSA People Power Revolution, ending his 20-year rule.

Apple launched the Apple IIGS, a 16-bit upgrade to its aging 8-bit Apple II line, blending backward compatibility with color graphics and sound.

Mikhail Gorbachev delivered a landmark speech to the 27th Communist Party Congress in Moscow, formally unveiling perestroika and glasnost to the Soviet elite.

The Rogers Commission held its first public hearing into the Space Shuttle Challenger disaster, beginning the inquiry that exposed NASA's O-ring failures.

Physicist Richard Feynman is sworn into the Rogers Commission investigating the Challenger disaster, where his ice-water O-ring test would become iconic.

Days after fleeing Manila, the deposed Ferdinand Marcos was formally confirmed in exile in Hawaii as the Philippines settled into Corazon Aquino's new government.

Weeks after fleeing the Philippines amid the People Power Revolution, the new Aquino government moved to seize and investigate the hidden fortune of ousted president Ferdinand Marcos.