Astrophysics

Cosmology Observational Astronomy Cosmic Phenomena Stellar Evolution Celestial Mechanics Orbital Mechanics Galaxies Black Holes Star Formation Planetary Science

Young Sun May Bear Interior Fingerprint From Swallowed Super-Earth

Modelled chemical and structural signatures offer testable evidence to resolve long-standing solar-model problems.

Chandra Identifies 84 Hypersoft X‑Ray Sources Hidden in Six Galaxies

Robotic Rescue of NASA’s Swift Observatory Fails as Telescopes Return for Final Observations

Lensing Model Recasts LIGO’s Massive Black‑Hole Merger as an Optical Illusion

Physicists Offer New-Physics Explanation for an 'Impossible' 300‑TeV Photon from the BOAT

Eccentric Encounter Built Massive Protobinary, 3D Orbit Shows

Simulations Show Moon Could Have Formed Intact in Hours After Giant Impact

Nancy Grace Roman Space Telescope Begins Commissioning After Falcon Heavy Launch

New Method Predicts How 'Hair' Would Alter Black Hole Ringdown

LZ Reports Single Unexplained Event in Dark‑Matter Search

BepiColombo Drops Propulsion Module and Begins Final Approach to Mercury

BepiColombo Separates Transfer Module and Begins Final Approach to Mercury

Roman Space Telescope Begins Transit to L2 After Successful Falcon Heavy Launch

LUX‑ZEPLIN Flags Single Event as Its Most Convincing Dark Matter Hint

JWST Pixel Analysis Reveals Four Close Little Red Dot Pairs Pointing to Early Black‑Hole Clustering

Rescue Mission for NASA’s Swift Telescope Canceled After Servicer Suffers Control Failures

NASA’s Roman Telescope Launches and Heads Toward L2

September Skywatch: Venus, Neptune and the Harvest Moon Lead the Month’s Sights

NASA Launches Nancy Grace Roman Space Telescope

NASA Launches Nancy Grace Roman Space Telescope