Month: July 2025

GALACTIC WINDS – Outflows of gas driven by star formation and supernovae.

GALAXY EVOLUTION – The study of how galaxies change over time due to star formation, mergers, and environmental effects.

ELLIPTICITY – The measure of a galaxy’s shape, ranging from spherical to highly elongated.

DWARF GALAXIES – Small galaxies that orbit larger galaxies like the Milky Way.

TIDAL STREAMS – Streams of stars created by gravitational interactions between galaxies.

GALAXY ROTATION CURVE – The relationship between a galaxy’s rotational speed and distance from its center, indicating dark matter.

DARK MATTER HALO – A theoretical component of galaxies that explains gravitational effects not accounted for by visible matter.

SUPERMASSIVE BLACK HOLE – Extremely massive black holes found at the centers of galaxies.

ACTIVE GALACTIC NUCLEUS (AGN) – A bright, energetic center found in some galaxies, often containing a supermassive black hole.