A black hole pulls a star in it. And releases a rare luminous material jet.

"Illustration of a tidal disruption event (TDE). Credit: Carl Knox – OzGrav, ARC Centre of Excellence for Gravitational Wave Discovery, Swinburne University of Technology" (ScitechDaily/Black Hole Violently Tearing Apart a Star Unleashes Rare Luminous Jet of Matter)

TDEs  (Tidal Disruption Events) are sometimes causing a situation where lots of material would lose from the stars. And then that material would turn into a cosmic jet or so-called "superflares". The black hole can stretch entire stars to stretched material jets. But there is a mystery why all TDEs:s don't make that kind of phenomenon. 

Why is every star not stretching when they are falling into black holes?  Maybe we can find the answer to that question in the electromagnetic forces. There is a possibility that there are ions and anions in the star. If there are positive and negative particles in the star, that causes the electromagnetic pulling effect.

In that case, the electromagnetic forces keep the star in one piece longer than if the star is forming only anions or ions. That can explain why the black holes are not always making the superflare or turning the star into a plasma jet. A black hole is one of the most radical things in the universe. 

There are many reasons why those things are under research. They are the sources of strong gravitational waves. And another thing is that there should be very much dark matter packed near black holes. That thing can make it possible to make the first observation of the real dark matter if it has the material form. 

The black holes are excellent targets for making observations of gravitation and its form. Maybe someday we can make antigravitational levitation. But before that thing is possible researchers must find out the real shape of gravitation. And that happens by searching the interaction between the black hole and its environment. 

https://scitechdaily.com/black-hole-violently-tearing-apart-a-star-unleashes-rare-luminous-jet-of-matter/

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