0_Wizard
What do you think about extraterrestrial life or what is also called alien life?
Extraterrestrial life, also called alien life (or, if it is a sentient or relatively complex individual, an "extraterrestrial" or "alien"), is life that occurs outside of Earth and that probably did not originate from Earth.
chosen_Extraterrestrial_life_0
Extraterrestrial life
chosen_topic_0_Extraterrestrial_life
Extraterrestrial life
Extraterrestrial life, also called alien life (or, if it is a sentient or relatively complex individual, an "extraterrestrial" or "alien"), is life that occurs outside of Earth and that probably did not originate from Earth. These hypothetical life forms may range from simple prokaryotes to beings with civilizations far more advanced than humanity. The Drake equation speculates about the existence of intelligent life elsewhere in the universe. The science of extraterrestrial life in all its forms is known as exobiology. Since the mid-20th century, there has been an ongoing search for signs of extraterrestrial life.
Fermi paradox
The Fermi paradox or Fermi's paradox, named after physicist Enrico Fermi, is the apparent contradiction between the lack of evidence and high probability estimates for the existence of extraterrestrial civilizations. The basic points of the argument, made by physicists Enrico Fermi (1901–1954) and Michael H. Hart (born 1932), are: According to this line of reasoning, the Earth should have already been visited by extraterrestrial aliens. In an informal conversation, Fermi noted no convincing evidence of this, leading him to ask, "Where is everybody?" There have been many attempts to explain the Fermi paradox, primarily either suggesting that intelligent extraterrestrial life is extremely rare or proposing reasons that such civilizations have not contacted or visited Earth.
Potential cultural impact of extraterrestrial contact
The cultural impact of extraterrestrial contact is the corpus of changes to terrestrial science, technology, religion, politics, and ecosystems resulting from contact with an extraterrestrial civilization. It is closely related to the search for extraterrestrial intelligence (SETI), which attempts to locate intelligent life as opposed to analyzing the implications of contact with that life. The potential changes from extraterrestrial contact could vary greatly in magnitude and type, based on the extraterrestrial civilization's level of technological advancement, degree of benevolence or malevolence, and level of mutual comprehension between itself and humanity.
Douglas Vakoch
Douglas Vakoch (born June 16, 1961) is an American search for extraterrestrial intelligence (SETI) researcher, psychologist, and president of METI (Messaging Extraterrestrial Intelligence), a nonprofit research and educational organization devoted to transmitting intentional signals to extraterrestrial civilizations. On February 13, 2015 he engaged in a debate at the annual convention of the American Association for the Advancement of Science (AAAS) on whether humankind should send signals to other worlds in hope of reply. Vakoch advocates ongoing transmission projects, arguing that this does not increase risks of an alien invasion as suggested by British cosmologist Stephen Hawking.
Search for extraterrestrial intelligence
The search for extraterrestrial intelligence (SETI) is a collective term for scientific searches for intelligent extraterrestrial life, for example, monitoring electromagnetic radiation for signs of transmissions from civilizations on other planets. Scientific investigation began shortly after the advent of radio in the early 1900s, and focused international efforts have been going on since the 1980s. In 2015 Stephen Hawking and Russian billionaire Yuri Milner announced a well-funded effort called the Breakthrough Initiatives. There have been many earlier searches for extraterrestrial intelligence within the Solar System.
List of Alien characters
"Alien", a science-fiction action horror franchise, tells the story of humanity's ongoing encounters with Aliens: a hostile, endoparasitoid, extraterrestrial species. Set between the 21st and 24th centuries over several generations, the film series centers around a character ensemble's struggle for survival against the Aliens and against the greedy, unscrupulous megacorporation Weyland-Yutani. The main series consists of four films, "Alien" (1979), "Aliens" (1986), "Alien 3" (1992) and "Alien Resurrection" (1997), about Ellen Ripley's fight against the Aliens. Ripley is the sole survivor of an Alien rampage on the space freighter "Nostromo", which leads her to a series of conflicts with the species and Weyland-Yutani.
Ethics of terraforming
The ethics of terraforming has constituted a philosophical debate within biology, ecology, and environmental ethics as to whether terraforming other worlds is an ethical endeavor. On the pro-terraforming side of the argument, there are those like Robert Zubrin and Richard L. S. Taylor who believe that it is humanity's moral obligation to make other worlds suitable for Terran life, as a continuation of the history of life transforming the environments around it on Earth. They also point out that Earth will eventually be destroyed as nature takes its course, so that humanity faces a very long-term choice between terraforming other worlds or allowing all Earth life to become extinct.
1_Apprentice
I am conflicted regarding the subject.  I want to believe but am skeptical.