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

Milky Way bubbles

Astronomy; Galaxy

The two giant bubbles of high-energy gamma rays protruding from the Milky Way, each spanning 25,000 light-years across, roughly the size of the galaxy itself. According to NASA, the bubbles are ...

The giant intergalactic bubble of gas floating in space. It's the remnant of a massive star explosion, or supernova, in the Large Magellanic Cloud (LMC) galaxy some 400 years ago. The colorful image ...

neutron star

Astronomy; Galaxy

A remnant star of a supernova explosion with an approximate size of the sun or larger , in which gravity has caused all matter to collapse into a giant nucleus composed only of neutrons. The collapse ...

stellar evolution

Astronomy; Galaxy

The complete developmental stages in the lifetime of a star from its formation out of gas and dust to the time when its nuclear fuel is exhausted. Based on this stellar evolution model, the Sun is at ...

Crab nebula

Astronomy; Galaxy

A cloud-like nebula observed in the Crab constellation which is the remnant of a supernova explosion observed in China in 1054. It contains a very young and rapidly spinning pulsar or the remnant of ...

black hole

Astronomy; Galaxy

An extremely compact star which has collapsed by enormous gravitational pull to overcome electric and nuclear forces. Black holes are usually formed with stars much larger than the sun as they ...

alien particles

Astronomy; Galaxy

Space matters that make their way to the Earth from other parts of the galaxy outside of the solar system. The solar system inside the Milky Way is surrounded by the heliosphere which is the boundary ...