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In November 2013, astronomers reported, based on Kepler space mission data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of Sun-like stars and red dwarfs within the Milky Way. [166] [167] [168] 11 billion of these estimated planets may be orbiting Sun-like stars. [169]
The observable universe contains as many as an estimated 2 trillion galaxies [36] [37] [38] and, overall, as many as an estimated 10 24 stars [39] [40] – more stars (and, potentially, Earth-like planets) than all the grains of beach sand on planet Earth. [41] [42] [43] Other estimates are in the hundreds of billions rather than trillions.
The song was released as a single in the UK on 27 June 1983 when it reached No. 77 in the charts [3] and again on 2 December 1991 as a follow-up to the successful reissue of Always Look on the Bright Side of Life. In 2014 the song was featured in the live stage show Monty Python Live (Mostly) which was followed by another single release on 13 ...
"The Nine Billion Names of God" is a 1953 science fiction short story by British writer Arthur C. Clarke. The story was among the stories selected in 1970 by the Science Fiction Writers of America as one of the best science fiction short stories published before the creation of the Nebula Awards .
More than 99 percent of all species, amounting to over five billion species, [7] that ever lived on Earth are estimated to be extinct. [8] [9] Estimates on the number of Earth's current species range from 10 million to 14 million, [10] of which about 1.2 million have been documented and over 86 percent have not yet been described. [11]
The first part takes place on Earth, almost a century after the "Great Crisis", where ecological and economic collapse reduced the world's population from six billion to two billion. The timeline alternates between the events of the 2070s, outlining the discovery of the "electron pump," and events twenty-three years later.
According to the UN, the global population reached eight billion in November 2022, [64] but because the growth rate is slowing, it will take another 15 years to reach around 9 billion by 2037 and 20 years to reach 10 billion by 2057. [65] Alternative scenarios for 2050 range from a low of 7.4 billion to a high of more than 10.6 billion. [66]
Life is only known to exist on Earth but ... could occur in cell-free ... 4.54 billion years. [64] Life on Earth has existed ...