Nebula vs. Supernova

Nebulanoun

(astronomy) A cloud in outer space consisting of gas or dust (e.g. a cloud formed after a star explodes).

Nebulanoun

A white spot or slight opacity of the cornea.

Nebulanoun

A cloudy appearance in the urine

Nebulanoun

A faint, cloudlike, self-luminous mass of matter situated beyond the solar system among the stars. The term was originally applied to any diffuse luminous region. Now, technically, it is applied to interstellar clouds of dust and gases (diffuse nebula). However distant galaxies and very distant star clusters often appear like them in the telescope, such as the spiral nebula in Andromeda, known now to be a distant galaxy.

Nebulanoun

A white spot or a slight opacity of the cornea.

Nebulanoun

a medicinal liquid preparation intended for use in an atomizer

Nebulanoun

cloudiness of the urine

Nebulanoun

an immense cloud of gas (mainly hydrogen) and dust in interstellar space

Nebulanoun

(pathology) a faint cloudy spot on the cornea

Nebulanoun

a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter.

Nebulanoun

a galaxy.

Nebulanoun

a clouded spot on the cornea causing defective vision.

Nebula

A nebula (Latin for 'cloud' or 'fog'; pl. nebulae, nebulæ or nebulas) is an interstellar cloud of dust, hydrogen, helium and other ionized gases.

Supernovanoun

(star) The explosion of a star, which increases its brightness to typically a billion times that of our sun, though attenuated by the great distance from our sun. Some leave only debris (Type I); others fade to invisibility as neutron stars (Type II).

Supernovanoun

a star that explodes and becomes extremely luminous in the process

Supernova

A supernova ( plural: supernovae or supernovas, abbreviations: SN and SNe) is a powerful and luminous stellar explosion. This transient astronomical event occurs during the last evolutionary stages of a massive star or when a white dwarf is triggered into runaway nuclear fusion.