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Alcubierre drive. Two-dimensional visualization of an Alcubierre drive, showing the opposing regions of expanding and contracting spacetime that displace the central region. The Alcubierre drive ( [alkuˈβjere]) is a speculative warp drive idea according to which a spacecraft could achieve apparent faster-than-light travel by contracting space ...
Black hole information paradox. The first image (silhouette or shadow) of a black hole, taken of the supermassive black hole in M87 with the Event Horizon Telescope, released in April 2019. The black hole information paradox[ 1] is a paradox that appears when the predictions of quantum mechanics and general relativity are combined.
A true vacuum is stable because it is at a global minimum of energy, and is commonly assumed to coincide with the physical vacuum state we live in. It is possible that a physical vacuum state is a configuration of quantum fields representing a local minimum but not global minimum of energy. This type of vacuum state is called a "false vacuum".
Gravity was also offered for free in HD on Google Play and Nexus devices from late October 2014 to early November 2014. A "special edition" Blu-ray was released on March 31, 2015. The release includes a "Silent Space Version" of the film which omits the score composed by Steven Price.
Around the time of alignment, extreme gravitational lensing of the galaxy is observed. A black hole is a region of spacetime where gravity is so strong that nothing, not even light and other electromagnetic waves, is capable of possessing enough energy to escape it. [ 2] Einstein 's theory of general relativity predicts that a sufficiently ...
Enrico Fermi (1901–1954) The Fermi paradox is a conflict between the argument that scale and probability seem to favor intelligent life being common in the universe, and the total lack of evidence of intelligent life having ever arisen anywhere other than on Earth. The first aspect of the Fermi paradox is a function of the scale or the large ...
A Pac-Man related interactive Google Doodle from 2010 will be shown to users searching for "google pacman" or "play pacman".. The American technology company Google has added Easter eggs into many of its products and services, such as Google Search, YouTube, and Android since the 2000s.
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 ( Mercury ), 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.