Astrobiology Textbooks Notes Introductions: Chapter One Astrobiology= combination of astronomy (study of universe) and and biology (study of life); “literally the study of life in the universe” What are we searching for? extraterrestrial life‚ life beyond earth we are looking for any sign of life‚ be it simple‚ complex‚ or intelligent The basis for life Life can move so can clouds Life can grow so can crystals Life can reproduce and spread so can fire The scientific search for
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Cosmos – an alternative name for the universe Meridian – a half circle extending from your horizon (altitude 0) due south through your zenith to your horizon due north. Zenith – the point directly overhead‚ which has an altitude of 90 degrees. Latitude –The angular north-south distance between Earth’s equator and a location on Earth’s surface. Longitude – The angular east-west distance between the prime meridian (which passes through Greenwich) and a location on Earth’s surface. Speed – The
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are ellipses ‚ 3rd mass of the star‚ solar masses/ distance from the star. The idealized scientific methodBased on proposing and testing hypothensis Hypothesis -educated guess (Book and Paper demo) Hallmarks of science: #1Modern science seeks explanations for observed phenomena that rely solely on natural causes. ( a scientific model cannot include divine intervention). Hallmarks of science: #2Science progresses through the creation and testing of models of nature that explain the observations
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C.E. The Bible was used in the Middle Ages to compute the age of the Earth. The 18th and 19th centuries brought a more scientific look into determining the age of the Earth by studying the salinities of the oceans‚ the rates of sedimentation‚ and models of cooling of different materials in order to calculate the Earth’s age. In 1862‚ William Thompson calculated the Earth’s age to be 98 million years and recounted that age to determine that it was actually between 20 and 40 million years old. He used
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hypothesis. 4. The island depicted in the diagram acts as ____________. a. an intermittent system b. a closed system c. a solar system d. an open system e. a isolated system 5. On the time scale of a human lifetime‚ Earth acts as ____________. a. an intermittent system b. a closed system c. a solar system d. an open system e. an isolated system 6. The ____________ is a subset of the Earth system that comprises all of its bodies of water and ice‚ both on the surface and underground
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Welcome to SCIE 150: The Science of Everything Today: Astronomy Today • Stars: how are they born‚ how do they live‚ how do they die ▫ How do different stars vary in these paths • Planets: how are they born ▫ What are the planets of our solar system like • Constellations are A. Stars that are nearby each other in space B. Stars that appear to be near each other‚ but may be very far apart The Sun • Our Sun is A. B. C. D. An average star A very small star A very big
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trigonometry to study the stars. Also the Ptolemaic system was created to track and predict star positions. 3. The days of the week have been named after the seven planets of astronomy starting. Starting with Sunday‚ sol‚ Luna‚ mars‚ mercurius‚ iuppiter‚ venus‚ and saturnus. 4. A lunar calendar is based of the cycles of the lunar phases. There are 12 lunar cycles per year. Lunar calendars are still used in traditional Jewish and Chinese calendars. 5. A model is anything used as a representation of an object
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ASTR 101 Size of the Solar System Name _______ Section __ Overview · Become familiar with the scale of the planets vs. their distances. · Get an overview of the solar system. · 50 points are possible Introduction It is easy to flip to the index of an astronomy textbook to discover that‚ say‚ the Sun lies 150 million kilometers away from Earth. It is far more difficult (if not impossible)‚ however‚ to picture this distance in our mind. In this exercise
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lenticulae are actually small areas of chaos and that the claimed pits‚ spots and domes are artefacts resulting from over-interpretation of early‚ low-resolution Galileo images. The implication is that the ice is too thin to support the convective diapir model of feature formation. [42] [43] [edit] Subsurface
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SLFC PROJECT Chemical origin of Life and Life on other Planets Drishta Gopala‚ Sarthak Malhotra‚ Srividya‚ Suprigya Dipangi Theories for Chemical Evolution Of Life On Earth Introduction According to a mechanistic‚ naturalistic view of the universe‚ and thus of origins‚ the whole of reality is evolution — a single process of self-transformation. Everything in the universe‚ according to this view‚ has evolved from a primordial chaotic or random state of matter. This evolutionary
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