Galaxy

Galaxy

Relating to any large system of stars held together by mutual gravitation and isolated from similar systems by vast regions of space.

Industry: Astronomy

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Galaxy

A celestial object captured by NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) that resembles the cosmic "Hand of God." The object is the result of a star explosion which ejected an enormous ...

BlackHoleCam

Astronomy; Galaxy

A project that uses radio telescopes and supercomputers to try to prove the existence of a supermassive black hole at the center of the Milky Way galaxy. While most astrophysicists believe black ...

anti-matter

Astronomy; Galaxy

An anti-matter are anti-particles that have the same mass as their "mirror" particles, but they are opposite of quantum number, especially as regards their electricity charge.

cluster of galaxies

Astronomy; Galaxy

A system of galaxies containing from a few to a few thousand member galaxies which are all gravitationally bound to each other.

luminosity

Astronomy; Galaxy

It is the measure of a star's brightness; the greater the luminosity the brighter the star appears. It is the measure of how much energy per unit time the star is releasing (i.e. the rate of ...

barred galaxies

Astronomy; Galaxy

Disk galaxies showing a prominent, elongated feature, often streaked by absorption lanes due to interstellar dust. Prominent bars are observed in about 1/3 of disk galaxies; approximately 2/3 of ...

Markarian galaxies

Astronomy; Galaxy

Galaxies showing an excess of blue and near UV emission, identified by B.E. Markarian through an objective prism survey with the 1-m Schmidt telescope of the Byurakan observatory.