Long ago, before supernovas were known about, or high precision telescopes existed, early astronomers would look up into the sky and plot the position of the stars.
When a supernova explodes, it emits a powerful burst of radiation that can outshine a whole galaxy. When the light from this burst reaches the Earth, it would suddenly appear in the night sky "as if by magic".
Astronomers would class this as a "new" star but were then bemused, as over several weeks it would slowly fade away to nothing.
The astronomer Tycho Brahe observed the supernova SN 1572 in the constellation Cassiopeia, and described it in his book de Stella nova (Latin for "concerning the new star"), giving rise to the name nova.
It's Called A Supernova
Dangerous. Novas, or supernovas. Tycho Brahe coined the phrase "nova stellarum" when a "new star" appeared in the night sky. We now know that he was observing a supernova, the death throes of a very massive star.
A supernova, or in the case of a smaller star, a nova.
supernova
Supernova
The explosive death of a star is called a supernova.
well what you gotta do is go home a smoke weed
supernova
That's called a supernova.
A region left behind after a major star dies is called a supernova remnant. Supernova remnants are expanding shells of gas and dust that result from the explosive death of a massive star in a supernova event. They play a crucial role in enriching the interstellar medium with heavy elements and triggering new star formation.
There are several different kinds. An explosion ON a star is usually called a "nova" (from the Latin for "new", because this results in the star brightening significantly, thus appearing to be a "new star"). The star itself usually survives, and the cycle will probably repeat several times. The explosion OF a very large star is called a "supernova", and again there are different kinds. Stars generally either do not survive this, or survive only in very changed form (as a neutron star or black hole).
supernova