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Supernovae

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Two Peer‑Reviewed Analyses Reach Opposite Conclusions on Cosmic Acceleration

The papers conflict because they apply different corrections to the same Pantheon+ supernova sample and say much larger Rubin/LSST data will be needed to decide which method is right.

Study Reaffirms Cosmic Acceleration After Rebutting 2025 Deceleration Claim

Magnetar ‘Chirp’ Identified in Superluminous Supernova as Short GRB Localized to Tidal-Stream Dwarf

JWST Spots Record-Distant Supernova Tied to March Gamma-Ray Burst

New Study Claims the Universe Is Now Decelerating After Supernova Age-Bias Correction

Astronomers Confirm Rare Binary with Neutron Star Stripping Companion