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European Space Agency reveals 3 key space missions threatened by Trump's NASA budget cuts
Gravitational wave observatory LISA, Venus orbiter EnVision, and the largest X-ray observatory ever planned, NewAthena, will require "recovery actions" if NASA budget cuts are to go ahead.
During a press conference held on Thursday (June 12), ESA Director of Science Carole Mundell revealed that the space-based gravitational wave observatory LISA, the Venus orbiter EnVision, and the largest X-ray observatory ever planned, NewAthena, could be threatened if the proposed NASA budget cuts in Trump's FY26 budget go ahead. An illustration of LISA , a proposed space-based gravitational wave detector , that could investigate further black hole mergers but could it be a victim of NASA cuts (Image credit: NASA)Though the Nov. 16, 2025 launch of the sea-level rise monitoring Sentinel-6B spacecraft will go ahead as planned, its sibling mission, Sentinel-6C, could also be impacted by the proposed budget cuts if they are passed successfully. ESA may now seek to develop on its own the technologies for the three main elements of the rover set to be provided by NASA: its launcher, radio isotope heater unit, and aerobraking engine.
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