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.
DSS-23 began operations on 3 August 2026. Its arrival adds capacity while older antennas, maintenance outages and competing mission requests continue to shape the network’s schedule.
Within days of the January 2025 inauguration, thousands of federal datasets began disappearing from public websites. Researchers scrambled to mirror the pages before they vanished — and much of what was captured cannot fully replace what was lost.
Radar confirms that the Mare Tranquillitatis pit leads into a cave, while kilometre-wide lunar tubes remain a modelled possibility whose existence and habitability have not been demonstrated.
A new traffic-management study tests how Gateway and visiting spacecraft could wait in the same unstable lunar orbit without allowing small errors to erase their safety margin.
Ingenuity's 2,400-rpm rotors were one part of a complete system built to generate lift in an atmosphere less than one per cent as dense as Earth's—and to survive long enough to do it 72 times.
The placemat, the 600-mile figure and the real cover experiment all come from the National Reconnaissance Office's own history of Grab and its successor Poppy. No footnote in that pamphlet ties a statement about Grab to a specific record, two of its figure references point at the wrong launch, a third disagrees with its own text on a date, and its claim about being first is narrower than it looks in summary.
GSLV-F17 delivered India's first geosynchronous Earth-imaging spacecraft to a transfer orbit. EOS-05 must now complete its climb before persistent regional radar observations begin.
