Medulla Nebula
The star likely detonated when it ran out of elements, near its core, that could create stabilizing pressure with nuclear fusion. The resulting supernova remnant, nicknamed the Medulla Nebula for its brain-like shape, still glows in visible light by the heat generated by its collision with confining interstellar gas.
Are there any recorded supernovas?
Although no supernova has been observed in the Milky Way since 1604, it appears that a supernova exploded in the constellation Cassiopeia about 300 years ago, around the year 1667 or 1680. However it can be observed in other parts of the spectrum, and it is currently the brightest radio source beyond our solar system.
What causes dark nebula?
What causes a dark nebula? They are caused by interstellar clouds with a very high concentration of dust grains obscuring light. These dust clouds obscure and block visible light objects behind it. Such as background stars or emission or reflection nebulae.
What is the difference between a planetary nebula and a supernova remnant?
No, they are two entirely different things. A planetary nebula is born when a low mass star dies (low mass means less than about 8 times the mass of the Sun), while the supernova is the death of a massive star. The end result is the titanic explosion called the supernova, leaving behind a neutron star or a black hole.
When did sn1987a actually explode?
On Feb. 23, 1987, Earth time, a massive star blew apart right in front of the world’s astronomers, strewing ribbons and rings of glowing gas across the Large Magellanic Cloud, a satellite galaxy on the doorstep of the Milky Way.
Do supernovae explode?
The Short Answer: A supernova is the biggest explosion that humans have ever seen. Each blast is the extremely bright, super-powerful explosion of a star. A supernova is the biggest explosion that humans have ever seen.
