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Interstellar travel is the hypothetical travel of spacecraft from one star system, solitary star, or planetary system to another. Interstellar travel is expected to prove much more difficult than interplanetary spaceflight due to the vast difference in the scale of the involved distances. Whereas the distance between any two planets in the Solar System is less than 30 astronomical units (AU), stars are typically separated by hundreds of thousands of AU, causing these distances to typically be expressed instead in light-years. Because of the vastness of these distances, non-generational interstellar travel based on known physics would need to occur at a high percentage of the speed of light; even so, travel times would be long, at least decades and perhaps millennia or longer.
Known Space is the fictional setting of about a dozen science fiction novels and several collections of short stories by American writer Larry Niven. It has also become a shared universe in the spin-off Man-Kzin Wars anthologies. The Internet Speculative Fiction Database (ISFDB) catalogs all works set in the fictional universe that includes Known Space under the series name Tales of Known Space, which was the title of a 1975 collection of Niven's short stories. The first-published work in the series, which was Niven's first published piece, was "The Coldest Place", in the December 1964 issue of If magazine, edited by Frederik Pohl. This was the first-published work in the 1975 collection.
A fusion rocket is a theoretical design for a rocket driven by fusion propulsion that could provide efficient and sustained acceleration in space without the need to carry a large fuel supply. The design requires fusion power technology beyond current capabilities, and much larger and more complex rockets.
The concept of self-replicating spacecraft, as envisioned by mathematician John von Neumann, has been described by futurists including physicist Michio Kaku and discussed across a wide breadth of hard science fiction novels and stories. Self-replicating probes are sometimes referred to as von Neumann probes. Self-replicating spacecraft would in some ways either mimic or echo the features of living organisms or viruses.
The Songs of Distant Earth is a 1986 science fiction novel by British writer Arthur C. Clarke, based upon his 1958 short story of the same title. He stated that it was his favourite of all his novels. Clarke also wrote a short step outline with the same title, published in Omni magazine and anthologized in The Sentinel in 1983.
The Ark is the sixth serial of the third season of the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from 5 to 26 March 1966.
After Worlds Collide (1934) is a sequel to the 1933 science fiction novel, When Worlds Collide. Both novels were co-written by Edwin Balmer and Philip Wylie. After Worlds Collide first appeared as a six-part monthly serial in Blue Book magazine. Much shorter and less florid than the original novel, this one tells the story of the survivors' progress on their new world, Bronson Beta, after the destruction of the Earth.
"The Masterpiece Society" is the 113th episode of the American science fiction television series Star Trek: The Next Generation, the 13th episode of the fifth season.
A quake is the result when the surface of a planet, moon or star begins to shake, usually as the consequence of a sudden release of energy transmitted as seismic waves, and potentially with great violence.
The 11th Hour is a 2007 documentary film on the state of the natural environment created, produced, co-written and narrated by Leonardo DiCaprio. It was directed by Leila Conners Petersen and Nadia Conners and financed by Adam Lewis and Pierre André Senizergues, and distributed by Warner Independent Pictures.
The Killing Star is a hard science fiction novel by American writers Charles R. Pellegrino and George Zebrowski, published in April 1995. It chronicles a sudden alien invasion in a late 21st century technological utopia, while covering several other speculative fiction ideas such as sublight interstellar travel, genetic cloning, virtual reality, advanced robotics, etc.
Ark is a 2009 hard science fiction novel by English author Stephen Baxter. It is a sequel to his 2008 novel Flood. Ark deals with the journey of the starship Ark One, and the continuing human struggle for survival on Earth after the catastrophic events of Flood. The series continues in three pendant stories, which are described in the plot summary below.
Aftermath is a 2010 Canadian-American documentary television series created by History Canada and produced by Cream Productions. It aired on National Geographic in the United States.
K-type main-sequence stars, also known as orange dwarfs, may be candidates for supporting extraterrestrial life. These stars are known as "Goldilocks stars" as they emit enough radiation in the non-UV ray spectrum to provide a temperature that allows liquid water to exist on the surface of a planet; they also remain stable in the main sequence longer than the Sun by burning their hydrogen slower, allowing more time for life to form on a planet around a K-type main-sequence star. The planet's habitable zone, ranging from 0.1–0.4 to 0.3–1.3 astronomical units (AU), depending on the size of the star, is often far enough from the star so as not to be tidally locked to the star, and to have a sufficiently low solar flare activity not to be lethal to life. In comparison, red dwarf stars have too much solar activity and quickly tidally lock the planets in their habitable zones, making them less suitable for life. The odds of complex life arising may be better on planets around K-type main-sequence stars than around Sun-like stars, given the suitable temperature and extra time available for it to evolve. Some planets around K-type main-sequence stars are potential candidates for extraterrestrial life.
Cibola Burn is a 2014 science fiction novel by James S. A. Corey and the fourth book in The Expanse series. It follows the crew of the Rocinante as they join the flood of humanity out into the galaxy, using the gates built by the ancient civilization which also produced the protomolecule. At the release of Cibola Burn, Orbit Books announced that James S. A. Corey would write three additional books in the series to bring the series to nine novels and various short stories. Cibola Burn serves as the basis for the fourth season of the television series The Expanse, which was released by Amazon Video December 13, 2019.
Aurora is a 2015 novel by American science fiction author Kim Stanley Robinson. The novel concerns a generation ship built in the style of a Stanford torus traveling to Tau Ceti in order to begin a human colony. The novel's primary narrating voice is the starship's artificial intelligence. The novel was well-received by critics.
Death's End is a science fiction novel by the Chinese writer Liu Cixin. It is the third novel in the trilogy titled Remembrance of Earth's Past, following the Hugo Award-winning novel The Three-Body Problem and its sequel, The Dark Forest. The original Chinese version was published in 2010. Ken Liu translated the English edition in 2016. It was a finalist for the 2017 Hugo Award for Best Novel and winner of the 2017 Locus Award for Best Science Fiction Novel.
Tiamat's Wrath is a science fiction novel by James S. A. Corey, the pen name of Daniel Abraham and Ty Franck, and the eighth book in their series The Expanse. Following the series' tradition of referring to ancient mythology in its titles, the book's title references the Babylonian goddess Tiamat, who took part in the creation of the universe.
References
- ↑ Hale, Mike (2012-11-30). "No End in Sight for Doomsaying". The New York Times . Retrieved 2014-08-29.