Space exploration has always carried significant risk. Over the decades, humanity has made extraordinary strides in spaceflight,
but these achievements have sometimes come with tragic setbacks. Here are seven of the most notable accidents and disasters in spaceflightragedy struck early in NASA’s Apollo program when a cabin fire during a pre-launch test killed all three astronauts aboard—Gus Grissom, Ed White,
and Roger B. Chaffee. The accident occurred on January 27, 1967, due to an electrical spark in a highly oxygenated environment. This led to major design and safety overhauls in NASA’s spacecraft and procedureust months after the Apollo 1 tragedy,
the Soviet Union suffered its own loss with Soyuz 1. Cosmonaut Vladimir Komarov died when his spacecraft crashed on re-entry after a parachute failure. Engineers had known of technical issues prior to launch, but political pressure pushed the mission forward.
Komarov’s death exposed serious flaws in Soviet space hardware and safety practicOn January 28, 1986, the Space Shuttle Challenger broke apart 73 seconds after liftoff, killing all seven astronauts, including schoolteacher Christa McAuliffe. The cause was a faulty O-ring in a solid rocket booster that failed in cold weather, allowing hot gases to escape and destroy the fuel tank. The disaster led to a 32-
month grounding of the shuttle program and major safety reforms., killing all seven crew members. A piece of foam insulation had broken off during launch and damaged the heat shield on the left wing. When the shuttle re-entered Earth’s atmosphere, hot gases entered the breach, causing the craft to break apart. This led to the eventual retirement of the Space Shuttle phe only humans known to have died in space (above the Kármán line) were the crew of Soyuz 11.
Georgi Dobrovolski, Viktor Patsayev, and Vladislav Volkov were returning from the world’s first space station, Salyut 1, when their cabin depressurized during re-entry. Lacking space suits,
all three perishWhile not fatal, several of SpaceX’s early Starship prototype test flights ended in dramatic explosions. One notable failure occurred in December 2020 when the SN8 prototype crashed during a landing attempt. These tests, though unmanned,
highlight the experimental nature of cutting-edge rocket developmuring a test flight of Virgin Galactic’s SpaceShipTwo in 2014, the VSS Enterprise broke apart mid-air,
killing one pilot and injuring another. The accident was caused by premature deployment of the feathering descent system. This setback delayed commercial suborbital tourism efforts
hese incidents serve as stark reminders of the perils of spaceflight. Each disaster has also led to improvements in technology, procedures, and safety, ultimately contributing to the advancement of human space exploration.