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Hace 18 horas · General relativity, also known as the general theory of relativity and Einstein's theory of gravity, is the geometric theory of gravitation published by Albert Einstein in 1915 and is the current description of gravitation in modern physics. General relativity generalizes special relativity and refines Newton's law of universal gravitation ...
Hace 18 horas · In Philip Wylie and Edwin Balmer's novel When Worlds Collide (1933), Earth is destroyed by the rogue planet Bronson Alpha. A selected few escape on a spaceship. In the sequel, After Worlds Collide (1934), the survivors start a new life on the planet's companion Bronson Beta, which has taken over the orbit formerly occupied by Earth.
Hace 18 horas · Aliens is a 1986 science fiction action film written and directed by James Cameron.It is the sequel to the 1979 science fiction horror film Alien, and the second film in the Alien franchise.Set in the far future, it stars Sigourney Weaver as Ellen Ripley, the sole survivor of an alien attack on her ship. When communications are lost with a human colony on the moon where her crew first saw the ...
Hace 18 horas · Jean Elaine Grey is a character appearing in American comic books published by Marvel Comics.Created by writer Stan Lee and artist/co-plotter Jack Kirby, the character first appeared in The X-Men #1 (September 1963). Jean Grey is a member of a subspecies of humans known as mutants who are born with superhuman abilities. She was born with psionic powers.
Hace 18 horas · From an observation of a transit of Venus in 1032, the Persian astronomer and polymath Ibn Sina concluded that Venus was closer to Earth than the Sun. In 1677, Edmond Halley observed a transit of Mercury across the Sun, leading him to realize that observations of the solar parallax of a planet (more ideally using the transit of Venus) could be used to trigonometrically determine the distances ...
Hace 18 horas · Mercury is the first planet from the Sun and the smallest in the Solar System.In English, it is named after the ancient Roman god Mercurius (), god of commerce and communication, and the messenger of the gods.Mercury is classified as a terrestrial planet, with roughly the same surface gravity as Mars.The surface of Mercury is heavily cratered, as a result of countless impact events that have ...
