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Science & Technology — September 12, 2026

The Morning Brief Desk · September 12, 2026

Human hearts can regrow muscle. Researchers showed for the first time that human heart muscle cells can regrow after a heart attack. That overturns the long-held view that damaged cardiac tissue cannot regenerate.

Science Daily · Read more →

Atlantic hurricane season sets quiet record. The Atlantic has produced five named storms but zero hurricanes through Sept. 11, the first such stretch since reliable recordkeeping began.

Scientific American · Read more →

Court fines lawyer over AI-fabricated testimony. New Mexico's Supreme Court fined a defense attorney $5,000 for citing AI-invented witnesses and fake police testimony in a murder-conviction appeal.

Ars Technica · Read more →

House members push to cancel recess over AI. After Anthropic insiders warned AI could destroy humanity within a decade, House members are circulating a letter urging Speaker Johnson to cancel recess until AI safeguards pass.

According to Axios, the doomsday warnings from inside Anthropic have set off broader alarm on Capitol Hill, with lawmakers frantically seeking answers and attempting to piece together a legislative response. The letter to the speaker is one element of that scramble, tying the chamber's schedule directly to passage of safety measures rather than leaving the timeline open-ended.

Axios · Read more →

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