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The first is a stellar-mass black hole—formed from the collapse of a star, these types of black holes usually weigh in at around five to up to 100 times that of the Sun.
These minuscule black holes, due to their small size, would have been able to pick up a rare and exotic property from the quark-gluon soup in which they formed, called a “color charge.”
A quasi-star (also called black hole star) is a hypothetical type of extremely massive and luminous star that may have existed early in the history of the Universe. They are thought to live around 7-10 million years. Unlike modern stars, which are powered by nuclear fusion in their cores, a quasi-star's energy would come from material falling ...
An accretion disk is a structure (often a circumstellar disk) formed by diffuse material [ a] in orbital motion around a massive central body. The central body is most frequently a star. Friction, uneven irradiance, magnetohydrodynamic effects, and other forces induce instabilities causing orbiting material in the disk to spiral inward toward ...
Diagnosis. A plantar wart is a small lesion that appears on the surface of the skin and typically resembles a cauliflower, with tiny black petechiae (tiny hemorrhages under the skin) in the center. Pinpoint bleeding may occur when these are scratched. Plantar warts occur on the soles of feet and toes.
Scientists have discovered the oldest black hole yet, a cosmic beast formed a mere 470 million years after the Big Bang. The findings, published Monday, confirm what until now were theories that ...
Adolescence is a time of rapid cognitive development. [ 60] Piaget describes adolescence as the stage of life in which the individual's thoughts start taking more of an abstract form and the egocentric thoughts decrease, allowing the individual to think and reason in a wider perspective. [ 61]
We don't know much about dark matter or dark energy, except that combined they make up 95% of the known universe. A new study from NASA is attempting to figure out what this stuff is. It's ...