NASA's Mars Sample Return Mission Is Dead

No article body was provided with this submission — only the headline was included in the source payload. The headline indicates that NASA’s Mars Sample Return program, the long-planned effort to retrieve rock and soil samples collected by the Perseverance rover and return them to Earth, has been cancelled or is being treated as effectively dead. Beyond that framing, no supporting details are available in the supplied text. A responsible summary cannot be written without the underlying reporting: the reasons for the cancellation, cost and schedule overruns, timeline, agency statements, and the fate of already-collected samples are all absent. To generate an accurate two-to-three paragraph summary, the full article text from science.org needs to be supplied, or I can fetch and read the source URL if you authorize a web fetch.