What happened
NASA announced Wednesday that a rock sample collected on Mars by its Perseverance rover last year contains what appear to be biosignatures, or signs of previous life, on the Red Planet. “This very well could be the clearest sign of life that we’ve ever found on Mars,” acting NASA Administrator Sean Duffy said at a press conference coinciding with the publication of a paper on the findings in the journal Nature.
Who said what
NASA scientists were “giddy” when Perseverance found the rock with telltale signs of microbial life in a former lakebed called the Jezero Crater, The New York Times said. After a year studying the sample from 140 million miles away, “we are at the point where we are actually saying in detail, ‘Here is what we have found,’” study lead author Joel Hurowitz told the Times. And the chances are “better than a coin flip” that the sample contained convincing evidence of life.
The rock, dubbed Cheyava Falls, is “composed of finely packed sediment and covered in specks resembling poppy seeds and leopard spots,” said The Washington Post. Those specks, the study found, are “minerals that — on Earth — have traditionally been created from microbial activity.” That’s the “closest we’ve actually come to discovering ancient life on Mars,” NASA science mission chief Nicky Fox told reporters, but it “certainly is not the final answer.”
What happened?
The “underlying elephant in the room” is that for the NASA scientists to confirm their theories, the rock samples “need to be returned to Earth,” said Space.com, and “NASA’s Mars Sample Return program remains in limbo due to budget constraints” and “priority shifts” in the Trump administration.
The evidence came in the form of a rock sample collected on the planet
