Archives: Glossary Terms: 691 terms

Dense regions of molecular clouds where stars are forming.

Pacific Standard Time.

Pyrotechnic Switching Unit onboard a spacecraft.

A spinning neutron star that emits energy along its gravitational axis. This energy is received as pulses as the star ...

A point in the orbit of a superior planet where it appears at right angles to the Sun as seem ...

An unusually bright object found in the remote areas of the universe. Quasars release incredible amounts of energy and are ...

Sometimes also called quasi-stellar source, this is a star-like object with a large redshift that gives off a strong source ...

Right Ascension.

The movement of an object either towards or away from a stationary observer.

Unit of angular measurement equal to the angle at the center of a circle subtended by an arc equal in ...