Black dwarf

A black dwarf is a theoretical stellar remnant, specifically a white dwarf that has cooled sufficiently that it no longer emits significant heat or light. Because the time required for a white dwarf to reach this state is calculated to be longer than the current age of the universe (13.8 billion years), no black dwarfs are expected to exist in the universe yet, and the temperature of the coolest white dwarfs is one observational limit on the age of the universe. A white dwarf is what remains of a main-sequence star of low or medium mass (below approximately 9 to 10 solar masses (M_☉)) after it has either expelled or fused all the elements for which it has sufficient temperature to fuse. What is left is then a dense sphere of electron-degenerate matter that cools slowly by thermal radiation, eventually becoming a black dwarf. If black dwarfs were to exist, they would be extremely difficult to detect, because, by definition, they would emit very little radiation. They would, however, be detectable through their gravitational influence. Various white dwarfs cooled below 3900 K (M0 spectral class) have been found recently by astronomers using MDM Observatory's 2.4-meter telescope. They are estimated to be 11 to 12 billion years old.

Dwarf

Dwarf may refer to:

Modern popular culture

Other uses

See also

Black

Black is the darkest color, the result of the absence of or complete absorption of light. It is the opposite of white (the combined spectrum of color or light). It is an achromatic color, literally a color without color or hue. It is one of the four primary colors in the CMYK color model, along with cyan, yellow, and magenta, used in color printing to produce all the other colors.

Black was one of the first colors used by artists in neolithic cave paintings. In the 14th century, it began to be worn by royalty, the clergy, judges and government officials in much of Europe. It became the color worn by English romantic poets, businessmen and statesmen in the 19th century, and a high fashion color in the 20th century.

In the Roman Empire, it became the color of mourning, and over the centuries it was frequently associated with death, evil, witches and magic. According to surveys in Europe and North America, it is the color most commonly associated with mourning, the end, secrets, magic, force, violence, evil, and elegance.

Marvel: Future Fight

Marvel: Future Fight is a 2015 superhero-themed video game.

Plot

In a near future, various dimensions start collapsing. In the future, a dying Nick Fury sends his robotic aid, Jocasta, to the player, with a message telling the player to get a group of heroes to restore the balance. After obtaining the heroes Captain America, Black Widow, and Iron Man, Ultron attacks Stark Tower. While fighting off the Ultrons, Jocasta remarks that something seems "off" about them, and the heroes see strange things, like a War Machine armor Iron Man didn't make, and a hostile Vision. Eventually, the Ultrons leave with not much visible damage, but Jocasta finds out that they kidnapped a Stark Industries employee, Jemma Simmons, who was studying alternate dimensions. The heroes rescue Jemma from AIM. Jemma tells them that they took her research in dimensions. Soon afterward, while trying to locate MODOK, the heroes encounter dimensional alternates of several heroes and villains, and realize that AIM has built a device to send people between dimensions. Eventually, the heroes take down MODOK. After that, SHIELD agents begin to be attacked on the streets by thugs with ISO-8 enhanced weapons, and supposedly secret S.H.I.E.L.D. bases are raided. After defeating Red Skull and Ultron, a large dimension transference device is opened and dimensions begin to collapse.

Iron Fist

Iron Fist may refer to:

In music: