NASA

Perseverance found the spots in 2024 in the Bright Angel mudstone at Jezero Crater: vivianite rims around greigite cores, the chemical leftovers of a redox reaction that living cells drive on Earth. The sample sits cached, waiting for a Mars Sample Return mission that lands no earlier than the 2030s.

On HN, the loudest objection wasn't that the find is weak but that the test is dodged: NASA, one commenter argued, will never fly the cheap school-grade wet microscope that could prove life outright, because a yes ends the funding for ever-pricier probes.

AXIS lost twenty team members to DOGE buyouts, missed a budget deadline after the shutdown, and quietly died after a decade of work. One Harvard researcher in the thread watched a study get flagged because it "engendered a robust hemodynamic response" — a keyword match.

Then a computational-biology PhD who left the field for software said something the room didn't expect: US science actually does need some cuts. The argument over how it was done, versus whether it should have been, runs through 800 comments.