Summary: Extraterrestrial life perhaps assumes carbon-based, Earthling-like aspects in Chapter 5 of Bang! The Complete History of the Universe by Chris Lintott, Brian May and Patrick Moore.
Extraterrestrial life assembles molecules from carbon and other atoms in Chapter 5 The Emergence of Life in Bang! The Complete History of the Universe by Chris Lintott, Brian May and Patrick Moore.
Extraterrestrial life becomes Earth-like and possible if carbon-based in a free oxygen atmosphere, on liquid or solid surfaces, with adequate water, equable temperatures and slow-changing conditions. It configures regular day-lit, night-darkened alternations since, without dark-interfacing, light-interfacing terminator boundary zones, one boiling illuminated side and one freezing dark side convoke rainless, violent winds. The habitable Goldilocks zone of Baby Bear-friendly temperatures describes Earth, not too hot Venus too close to, or too cold Mars too distant from, our Sun.
Perhaps one in every 100 in five billion planets out of the Milky Way Galaxy's 20 billion planets entail carbon-based extraterrestrial life in Goldilocks zone-friendly conditions.
Mars perhaps functions as the likeliest candidate for carbon-based extraterrestrial life with an albeit tenuous atmosphere, rotations 30 minutes longer than Earth's and tolerable surface temperatures.
No naturally adequate shield gives above-ground protection from harmful space radiation to carbon-based extraterrestrial life so any Martian life necessarily gets year-in, year-out underground living arrangements. Mars Exploration Rovers MER-A Spirit's (Jan. 2004-March 22, 2010) and MER-B Opportunity's (Jan. 2004-) hydrogeological information-gathering heralded Mars as a previously warm water-world with huge seas. Northern arctic regions include large quantities of water as ice, whose sampling the Phoenix spacecraft robotic arm implemented in 2008 and perhaps as occasional water spouts.
Perhaps extraterrestrial life, carbon-based or otherwise, once journeyed, or still journeys, through life cycles above or below Martian surfaces where environmental conditions jeopardize, or not, sustainability.
Perhaps one of 200 billion galaxies kindles extraterrestrial life, whose inevitable intelligence, unless only Earthlings key into intelligence, minimally knows our twentieth and twenty-first-century technological levels.
Civilizations capable of communication perhaps last long enough to languish from natural disasters, such as ancient Earthly cultures, or their own follies, perhaps such as ours. Interstellar travel mandates technological breakthroughs for us to meander outside our Solar System since modern spacecraft and rocket travel means centuries-long interstellar and years-long intra-galactic movements. Albert Einstein's (March 14, 1879-April 18, 1955) Theory of Special Relativity noted necessarily infinite amounts of energy negating human navigation at 300,000-mile (186,000-kilometer) light-speeds per second.
Radio waves operate at light-speeds and offer, for example, 11-light-year one-way, 22-light-year round-trip interstellar communications between observational astronomers on Earth and a planet orbiting Tau Ceti.
Nonreactiveness by 2031 to coded, mathematics-based artificial transmissions in 2009 to Epsilon Eridani perhaps proves Earthling-only intelligence, flawed experiments or technological civilizations over 11 light-years away.
The three authors quote Percival Lowell's (March 13, 1855-Nov. 12, 1916) qualifying extraterrestrial life as peaceful questers who quit far-off, technologically advanced civilizations for Earthly visits. Fred Hoyle's (June 24, 1915-Aug. 20, 2001) and Chandra Wickramasinghe's (born Jan. 20, 1939) theorized comet-released, pandemic viruses that ravage Earth resists our receiving extraterrestrial life. Solar hyperluminosity, not comet-sent, Earth-savaging, upper-atmospheric viruses, perhaps stops Francis Crick's (June 8, 1916-July 28, 2004) and Leslie Orgel's (Jan. 12, 1927-Oct. 27, 2007) directed panspermia.
The Crick and Orgel theory transports micro-organisms in the transgalactic spaceship of technologically advanced extraterrestrial life that perhaps tries nothing, or something, to trump solar hyperluminosity.
British rock band Queen's (left to right) John Deacon, Brian May, Roger Taylor and Freddie Mercury display gold disc for their sixth studio album, News of the World, released Oct. 28, 1977, and silver disc for the album's lead single, We Are the Champions, in London in May 1978: Record World, June 10, 1978: Comunità Queeniana, CC BY 2.0 Generic, via Flickr |
Acknowledgment
My special thanks to talented artists and photographers/concerned organizations who make their fine images available on the internet.
Image credits:
Image credits:
Brian May, Patrick Moore and Chris Lintott note in Bang! that a civilization with Earth-reaching capability would "come in peace," having "left war far behind" (page 76); "Map of Mars on Mercator Projection" shows Martian canals, observed via Lowell Observatory, in Percival Lowell's Mars (1895), plate 24, page 213: Public Domain, via Wikisource @ https://en.wikisource.org/wiki/Mars_(Lowell)/Appendix#/media/File:Lowell_-_Mars_(1896)_-_Plate_24.jpg
British rock band Queen's (left to right) John Deacon, Brian May, Roger Taylor and Freddie Mercury display gold disc for their sixth studio album, News of the World, released Oct. 28, 1977, and silver disc for the album's lead single, We Are the Champions, in London in May 1978: Record World, June 10, 1978: Comunità Queeniana, CC BY 2.0 Generic, via Flickr @ https://www.flickr.com/photos/comunitaqueeniana/37058555992/
For further information:
For further information:
Lowell, Percival. Mars. Boston MA and New York NY: Houghton, Mifflin and Company, 1896.
Available via Internet Archive @ https://archive.org/details/mars01lowegoog/
Available via Internet Archive @ https://archive.org/details/mars01lowegoog/
Marriner, Derdriu. 22 November 2012. "Earthly Life Avoids Replication Anywhere in Bang! The Complete History." Earth and Space News. Thursday.
Available @ https://earth-and-space-news.blogspot.com/2012/11/earthly-life-avoids-replication.html
Available @ https://earth-and-space-news.blogspot.com/2012/11/earthly-life-avoids-replication.html
Marriner, Derdriu. 15 November 2012. "Goldilocks Must Like Extrasolar Planets in Bang! The Complete History." Earth and Space News. Thursday.
Available @ https://earth-and-space-news.blogspot.com/2012/11/goldilocks-must-like-extrasolar-planets.html
Available @ https://earth-and-space-news.blogspot.com/2012/11/goldilocks-must-like-extrasolar-planets.html
Marriner, Derdriu. 8 November 2012. "Solar System Formation Accepts Leftovers in Bang! The Complete History." Earth and Space News. Thursday.
Available @ https://earth-and-space-news.blogspot.com/2012/11/solar-system-formation-accepts.html
Available @ https://earth-and-space-news.blogspot.com/2012/11/solar-system-formation-accepts.html
Marriner, Derdriu. 1 November 2012. "Star Formation Acts Local on Bang! The Complete History of the Universe." Earth and Space News. Thursday.
Available @ https://earth-and-space-news.blogspot.com/2012/11/star-formation-acts-local-on-bang.html
Available @ https://earth-and-space-news.blogspot.com/2012/11/star-formation-acts-local-on-bang.html
Marriner, Derdriu. 25 October 2012. "Dark Energy Accelerates Bang! The Complete History of the Universe." Earth and Space News. Thursday.
Available @ https://earth-and-space-news.blogspot.com/2012/10/dark-matter-accrues-in-bang-complete.html
Available @ https://earth-and-space-news.blogspot.com/2012/10/dark-matter-accrues-in-bang-complete.html
Marriner, Derdriu. 18 October 2012. "Dark Matter Accrues in Bang! The Complete History of the Universe." Earth and Space News. Thursday.
Available @ https://earth-and-space-news.blogspot.com/2012/10/black-holes-are-ionizers-in-bang.html
Available @ https://earth-and-space-news.blogspot.com/2012/10/black-holes-are-ionizers-in-bang.html
Marriner, Derdriu. 11 October 2012. "Black Holes Are Ionizers in Bang! The Complete History of the Universe." Earth and Space News. Thursday.
Available @ https://earth-and-space-news.blogspot.com/2012/10/black-holes-are-ionizers-in-bang.html
Available @ https://earth-and-space-news.blogspot.com/2012/10/black-holes-are-ionizers-in-bang.html
Marriner, Derdriu. 4 October 2012. "Ionized Gas Bubbles Atomize Bang! The Complete History of the Universe." Earth and Space News. Thursday.
Available @ https://earth-and-space-news.blogspot.com/2012/10/ionized-gas-bubbles-atomize-bang.html
Available @ https://earth-and-space-news.blogspot.com/2012/10/ionized-gas-bubbles-atomize-bang.html
Marriner, Derdriu. 27 September 2012. "Lighted Spaces Are Late in Bang! The Complete History of the Universe." Earth and Space News. Thursday.
Available @ https://earth-and-space-news.blogspot.com/2012/09/lighted-spaces-are-late-in-bang.html
Available @ https://earth-and-space-news.blogspot.com/2012/09/lighted-spaces-are-late-in-bang.html
Marriner, Derdriu. 20 September 2012. "Inflation Affects Space in Bang! The Complete History of the Universe." Earth and Space News. Thursday.
Available @ https://earth-and-space-news.blogspot.com/2012/09/inflation-affects-space-in-bang.html
Available @ https://earth-and-space-news.blogspot.com/2012/09/inflation-affects-space-in-bang.html
Marriner, Derdriu. 13 September 2012. "Lighted Dark Space Affirms Bang! The Complete History of the Universe." Earth and Space News. Thursday.
Available @ https://earth-and-space-news.blogspot.com/2012/09/lighted-dark-space-affirms-bang.html
Available @ https://earth-and-space-news.blogspot.com/2012/09/lighted-dark-space-affirms-bang.html
May, Brian; Patrick Moore; and Chris Lintott. 2012. Bang! The Complete History of the Universe. London UK: Carlton Books Ltd.