A wormhole is something that beats the curvature of space. It is a direct path between two points.
A black hole is a mass that is infinitely dense, infinitely small, and that has infinite gravitational pull within the confines of its event horizon.
A star is a massive ball of plasma, at the center of which fusion occurs.
2007-07-14 02:15:23
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answer #1
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answered by Anonymous
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A wormhole is any structure connecting two regions or areas otherwise distant or unrelated. They have long been discussed as a possible mode of interstellar travel and even of time travel. They are fairly well-popularized by science fiction, especially Star Trek: Deep Space Nine, which depicts a large traversible wormhole that allows the characters to travel from familiar regions of space to a distant and unrelated area on the other side of the galaxy.
Although The black whole my mother said that it use to be my closet http://casa.colorado.edu/~ajsh/approach.html this site will tell you exactly what it really is.
A star is a A self-luminous celestial body consisting of a mass of gas held together by its own gravity in which the energy generated by nuclear reactions in the interior is balanced by the outflow of energy to the surface, and the inward-directed gravitational forces are balanced by the outward-directed gas and radiation pressures.
Any of the celestial bodies visible at night from Earth as relatively stationary, usually twinkling points of light.
Something regarded as resembling such a celestial body.
2007-07-13 18:14:12
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answer #2
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answered by Kristenite’s Back! 7
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Black hole
A black hole is a star that has collapsed into a tiny point known as a singularity. It is so dense that it sucks in everything near it, including light. Black holes can be seen via the death throes of the matter being sucked in. Although it becomes invisible past a certain point, an accretion disk, which is visible, develops as the matter swirls toward the black hole. The collapsed star is so dense that nothing can escape its gravitational pull, not even light.
A black hole is a concentration of mass great enough that the force of gravity prevents anything from escaping from it except through quantum tunneling behavior. The gravitational field is so strong that the escape velocity near it exceeds the speed of light. This implies that nothing, not even light, can escape its gravity, hence the word "black." The term "black hole" is widespread, even though it does not refer to a hole in the usual sense, but rather a region of space from which nothing can return. Theoretically, black holes can have any size, from microscopic to near the size of the observable universe.
Black holes are predicted by general relativity. According to classical general relativity, neither matter nor information can flow from the interior of a black hole to an outside observer. For example, one cannot bring out any of its mass, or receive a reflection back by shining a light source such as a flashlight, or retrieve any information about the material that has entered the black hole. Quantum mechanical effects may allow matter and energy to radiate from black holes; however, it is thought that the nature of the radiation does not depend on what has fallen into the black hole in the past.
The existence of black holes in the universe is well supported by astronomical observation, particularly from studying supernovae and X-ray emissions from active galactic nuclei.
Wormhole
a wormhole is a hypothetical topological feature of spacetime that is essentially a 'shortcut' through space and time. A wormhole has at least two mouths which are connected to a single throat. If the wormhole is traversable, matter can 'travel' from one mouth to the other by passing through the throat. While there is no observational evidence for wormholes, spacetimes containing wormholes are known to be valid solutions in general relativity.
Star
A star is a massive, luminous ball of plasma. Stars group together to form galaxies, and they dominate the visible universe. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth, including daylight. Other stars are visible in the night sky, when they are not outshone by the Sun. A star shines because nuclear fusion in its core releases energy which traverses the star's interior and then radiates into outer space. Almost all elements heavier than hydrogen and helium were created inside the cores of stars. A star begins as a collapsing cloud of material that is composed primarily of hydrogen along with some helium and heavier trace elements. Once the stellar core is sufficiently dense, some of the hydrogen is steadily converted into helium through the process of nuclear fusion. The remainder of the star's interior carries energy away from the core through a combination of radiative and convective processes. These processes keep the star from collapsing upon itself and the energy generates a stellar wind at the surface and radiation into outer space.[1]
Once the hydrogen fuel at the core is exhausted, a star of at least 0.4 times the mass of the Sun[2] expands to become a red giant, fusing heavier elements at the core, or in shells around the core. It then evolves into a degenerate form, recycling a portion of the matter into the interstellar environment where it will form a new generation of stars with a higher proportion of heavy elements.[3]
Binary and multi-star systems consist of two or more stars that are gravitationally bound, and generally move around each other in stable orbits. When two such stars have a relatively close orbit, their gravitational interaction can have a significant impact on their evolution.[4]
2007-07-13 21:16:12
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answer #3
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answered by jason 4
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Black holes are phenomena that are commonplace to exist. Wormholes, on the different hand, are as yet concepts of fiction. Black holes sort while stars of staggering mass attain the top of their lifestyles. Their mass is so super, that as they lose potential, the autumn upon and into themselves. Black holes could properly be defined as having limitless mass, and so have quite super gravitational forces. some human beings have theorized that black holes could convey approximately different dimensions or situations, even with the shown fact that there is not any information to point this. the human beings who believe this had renamed black holes as computer virus holes, yet now computer virus holes have become an element of technology fiction, portrayed as artificially made transportation instruments to, returned, different dimensions or situations.
2016-11-09 06:52:57
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answer #4
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answered by newnum 4
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- A wormhole is a bend in space, and time.
-a black hole is an exploded star that has so much gravity it sucks in everything.
- a star is a ball of superheated gas
2007-07-13 17:41:28
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answer #5
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answered by Anonymous
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