Aug. 22, 2025 — Astronomers using AI have captured a once-in-a-lifetime cosmic event: a massive star’s violent death triggered by its black hole companion. The explosion, known as SN 2023zkd, not only ...

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October 10, 2025 • At New York City's Tenement Museum, high schoolers explore the American experience through the eyes of one 1860s-era Black family.

A conservative policy group's "fiscal health dashboard" putting Petaluma last among 328 California cities sets off another online squabble. Sign up for email ...