Extraterrestrial life is life that may exist and originate outside the planet Earth, the only place in the Universe known to support life.
Extraterrestrial life is defined as life
Life
Life is a characteristic of organisms that exhibit certain biological processes such as chemical reactions or other events that results in a transformation....
which does not originate from Earth ...
Extraterrestrial Life
References
Bada, J. L. "State-of-the-Art Instruments for Detecting Extraterrestrial Life." Proc. Nat. Acad. Sci. USA 98, 797-800, 2001.
Extraterrestrial life
Wikipedia, the free encyclopedia - Cite This Source ...
There has been quite a bit of work on extraterrestrial life, both from a theoretical point of view and also based on the known properties of the planets in our solar system, notably mars. A place to start is the SETI institute.
extraterrestrial life (in extraterrestrial life: Life in the solar system)
landform evolution (in continental landform (geology): A unified landform theory)
space exploration (in space exploration: Solar system exploration) ...
Extraterrestrial life: Life that comes from somewhere other than Earth.
G
Galaxy: A vast collection of stars, sometimes structured and sometimes not.
Searching for extraterrestrial life within our own Solar System could prove more fruitful. Perhaps there is life buried within Europa's ocean, powered by heat from hydrothermal vents? Image: NASA/JPL.
exobiology (NASA Thesaurus) Field of biology that deals with the search for extraterrestrial life and the conditions that may give rise to life on other planets or elsewhere in the Universe.
exobiology That field of biology which deals with the effects of extraterrestrial environments on living organisms and with the search for extraterrestrial life. exosphere The outermost, or topmost, portion of the atmosphere.
A majority of the search for extraterrestrial life has been done through the use of radio telescopes. These very special telescopes detect waves that occur in the low-energy (or radio) end of the electromagnetic spectrum.
The general case in favor of extraterrestrial life is summed up in what are sometimes called the assumptions of mediocrity: (1) because life on Earth depends on just a few basic molecules, ...
There is no current evidence for intelligent extraterrestrial life (as of 2004).
The central theme of the Viking missions was the search for extraterrestrial life.
- evolutionary theory and extraterrestrial life
- exobiology
- extrasolar planets
- extraterrestrial
- extraterrestrial intelligence, forms
- extraterrestrial life, detection of
- extraterrestrial life, likelihood of ...
An estimate for the number of planets with (intelligent) extraterrestrial life can be gleaned from the Drake equation, ...
Before space exploration, Mars was considered the best candidate for harboring extraterrestrial life. Astronomers thought they saw straight lines crisscrossing its surface.
But, currently, we have skimpy to non-existent information about extraterrestrial life. The search is on, but, so far, ET has not been found. NASA’s Kepler Mission is underway to detect Earth-size extrasolar planets that could support life.
Various SETI websites were consulted as well, and the History Channel TV program THE 20TH CENTURY WITH MIKE WALLACE also ran a program on extraterrestrial life that discussed the SETI effort.
The primary objectives of the missions were to study the surface and atmosphere of Mars during close flybys to establish the basis for future investigations, particularly those relevant to the search for extraterrestrial life, ...
An adjective that means "beyond the Earth." The phrase "extraterrestrial life" refers to possible life on other planets.
Eyepiece
The lens or lens group closest to the eye in an optical instrument such as a telescope or microscope.
Frank Drake uses a radio telescope to conduct the first search for extraterrestrial life
1983
An orbiting infrared telescope sees a possible planet-forming disk around the star Beta Pictoris ...
The Evolution of Life on the Earth
The Search for Extraterrestrial Life
The Emergence of Intelligence
Future of Homo Sapiens---Merging of Nanocomputer circuitry With the Human Brain
Sustaining Life on the Earth ...
Colonization of Mars
Darian calendar - system of time-keeping
Extraterrestrial life
List of artificial objects on Mars
List of chasmata on Mars
List of craters on Mars
List of valles on Mars
Terraforming of Mars ...
In fact, some scientists believe these bursts have sterilized huge parts of the universe (a possible reason why we haven't found extraterrestrial life yet).
The incident however proved the existence of intelligent extraterrestrial life to the United States government, and gave them information on alien physiology from the thorough medical examinations of the three Ferengi. (DS9: "Little Green Men") ...
Indirect evidence for water can be seen all over the planet, from flood plains to dried up channels. If liquid water is found, it might just be a niche for simple extraterrestrial life - future human explorers will be keen to take a closer look.
water hole: The interval of the radio spectrum between the 21-cm hydrogen radiation and the 18-cm OH radiation; likely wavelengths to use in the search for extraterrestrial life.
put on a course for impact into Jupiter to prevent Galileo from drifting into an unwanted impact with the moon Europa, where the spacecraft had discovered and sent back evidence of a subsurface ocean that might be a habitat for extraterrestrial life.
later began to refer to beta Canum Venaticorum specifically. Astrobiologists singled it out as one of the most interesting stars in the sky and, in 2006, astronomer Margaret Turnbull called it the top candidate to search for extraterrestrial life.
 See also: Planet, Earth, Solar, Solar System, Time
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