A nuclear explosion 900 miles away shut down power grids and satellites across the Pacific, forcing scientists to confront a threat they didn't know they'd created.
Starship’s methane engines fit a Mars return architecture, but turning thin air and buried ice into cryogenic propellant would require a large autonomous factory.
Opportunity’s changing power output recorded repeated wind-cleaning events years before its camera caught a dust devil. The six-and-a-half-year gap reveals the difference between detecting an effect and identifying its cause.
Project A119 joined Cold War prestige to lunar physics, assigning a 24-year-old Carl Sagan to model an expanding debris cloud before the unexplained cancellation in January 1959.
LAGEOS-1 measures Earth without power or radio, while two Sagan-designed plaques inside use continental drift as a clock for a finder millions of years from now.
The manual docking saved Salyut 7, but the slower challenge was thawing a frozen station without letting meltwater reach its electronics.
Alouette I exceeded its one-year design life and used antennas that unrolled from compact coils into long tubular structures. Its radio observations left an enduring archive.
LDEF’s planned ten-month exposure became 69 months in orbit. Columbia returned its 57 experiments for close study of the effects of years in space.
Black Arrow launched Prospero after Parliament had been told the programme would end. The unflown R4 rocket preserved the next step that never happened.
Columbia’s TSS-1R experiment deployed 19.7 kilometres of tether before electrical arcing caused a break. The lost satellite still left useful data about electricity generation in orbit.
The five deep-sea arrays of the Ocean Observatories Initiative streamed continuous readings from the Atlantic and Pacific for a decade. In May 2026 the National Science Foundation moved to pull four of them out. A bipartisan Senate revolt reversed the plan — but the data gap and the deeper funding cliff remain.
Project West Ford tested a sparse ring of copper dipoles as a passive radio relay. Only part of its 480-million-needle payload dispersed individually, leaving a complicated legacy.
After decades of silence, LES-1 was heard again in 2012. Lincoln Laboratory now records its sunlight-powered radio tone from a rooftop antenna.
The Lunar Orbiter Image Recovery Project restored old tape drives inside a former McDonald’s to retrieve detail preserved in recordings from the 1960s.
Orbital images suggested Beagle 2 survived its Mars landing but could not communicate. Later modelling refined the solar-panel interpretation without conclusively establishing the failure.
NASA’s investigation traced the factory accident to missing fixture bolts, reliance on earlier paperwork and failures of planning and oversight. The repaired satellite later launched as NOAA-19 and operated until 2025.
