NASA Headquarters in Washington, DC. | Photo: Anadolu Agency via Getty ImagesAn exciting discovery on Mars is being overshadowed by turmoil at NASA, with budget cuts threatening to destroy a scientific legacy that has been built over decades.Yesterday, the agency shared a finding, published in Nature, of potential biosignatures identified by the Mars Perseverance rover in a 3.5 billion-year-old rock."This very well could be the clearest sign of life that we've ever found on Mars," said Transportation Secretary and Acting NASA Administrator Sean Duffy in a press conference.Leftover fossilsScientists involved in the research were careful to emphasize that the findings - related to unusual textural features of r …Read the full story at The Verge.