The Universe Vocab. 1

The prevailing cosmological model explaining the existence of the observable universe from the earliest known periods through its subsequent large-scale evolution.

• Big Bang Theory

•  Irregular Galaxy

• Quasar

•  Barred Spiral Galaxy

Tags

NGSS.HS-ESS1-2

A region of space having a gravitational field so intense that no matter or radiation can escape.

• Black Hole

•     Irregular Galaxy

• Big Bang Theory

• Spiral Galaxy

A galaxy that has a generally elliptical shape and that has no apparent internal structure or spiral arms.

• Quasar

• Elliptical Galaxy

• Binary System

• Irregular Galaxy

A star system consisting of two stars orbiting a common center of mass.

• Quasar

•   Galaxy

• Galactic Cluster

• Binary System

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

Galaxy that does not have the clearly defined shape and structure.

• Binary System

• Galactic Cluster

• Irregular Galaxy

• Elliptical Galaxy

Spiral galaxy with a bar-like structure in the center, extending between the core and the spiral arms.

• Big Bang Theory

• Barred Spiral Galaxy

• Elliptical Galaxy

• Black Hole

A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.

• Black Hole

• Quasar

•  Irregular Galaxy

• Galaxy

Galaxy in which the stars and gas clouds are concentrated mainly in one or more spiral arms.

• Barred Spiral Galaxy

• Elliptical Galaxy

• Black Hole

• Spiral Galaxy

Structure that consists of anywhere from hundreds to thousands of galaxies that are bound together by gravity.

• Binary System

• Spiral Galaxy

• Galactic Cluster

• Black Hole

An extremely luminous active galactic nucleus.

• Quasar

• Irregular Galaxy

• Spiral Galaxy

• Galactic Cluster