Quarks to Quasars

Galaxy

A galaxy is a massive, gravitationally bound system that consists of stars and stellar remnants, an interstellar medium of gas and dust, and an important but poorly understood component tentatively dubbed dark matter.

1. M82, the archetype starburst galaxy, has experienced a 10-fold increase^[71] in star formation rate as compared to a “normal” galaxy.

2. NGC 1300, an example of a barred spiral galaxy.

3. The Antennae Galaxies are undergoing a collision that will result in their eventual merger.

4. Galactic Center of the Milky Way

5. NGC 4414, a typical spiral galaxy in the constellation Coma Berenices, is about 55,000 light-years in diameter and approximately 60 million light-years away from Earth.

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