Science ❯ Astronomy ❯ Astrophysics

Celestial Events

Fireballs Meteor Showers Visibility Predictions Merging Galaxies Sunset Phenomena Rarity of Observation Solar Eclipses Coronal Mass Ejections Comet Approaches Hubble Space Telescope Meteoroids Asteroid Collisions

Hubble Spots Second Debris Cloud at Fomalhaut, Confirming Repeated Planetesimal Collisions

Researchers now conclude the bright sources are expanding debris from roughly 60‑kilometer planetesimal impacts.

Astronomers Confirm First Coronal Mass Ejection From Another Star

First 2025 Manhattanhenge Aligns Setting Sun With City Street Grid