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Powerpoint - Physics and Astronomy
Powerpoint - Physics and Astronomy

... How did the Solar System Form? We weren't there (it was 5 billion years ago). We need a good theory. We can try to check it against other forming solar systems. What must it explain? - Solar system is very flat. - Almost all moons and planets (and Sun) rotate and revolve in the same direction. - Pl ...
Formation of the solar system
Formation of the solar system

... Assume gas cloud - contracts due to the gravitation; is opposed by the gas pressure. As the nebula (protostar) contracts energy is released, which causes the nebula to heat up. The spherical nebula is becoming a disck due to its rotation which combines with gravity to produce a force directed toward ...
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Part 2: Solar System Formation

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... Neptune. ___________ may simply be the largest object in this belt. ...
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Our Cosmic Neighborhood From our small world we have gazed

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Class 2 Solar System Characteristics Formation Exosolar Planets

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Astronomy 1010 final review sample topics

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Solar_System - UF :: Astronomy

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There are numerous other ways in which human civilization could

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Is Anyone Out There? Solving the Drake Equation

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... The Sun is the most prominent feature in our solar system. It is the largest object and contains approximately 98% of the total solar system mass. One hundred and nine Earths would be required to fit across the Sun's disk, and its interior could hold over 1.3 million Earths. The Sun's outer visible ...
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Study Guide 24-4 – Other Objects in the Solar System

... area between the orbits of Mars and Jupiter. This is known as the Asteroid Belt →  Why are they located there? Jupiter’s gravity might have kept a planet from forming in the area where the asteroid belt is located. The Near Earth Asteroid The data showed that Eros has Rendezvous (Near) occurred in ...
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The Solar System - Teacher Bulletin

... The Solar System includes: The sun The eight official planets At least three draft planets More than 130 satellites of the planets A large number of small bodies The interplanetary medium. ...
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Nebular Theory

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SNC1PL Celestial Objects and Constellations

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Origin of the Solar System

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Directed panspermia

Directed panspermia concerns the deliberate transport of microorganisms in space to be used as introduced species on lifeless planets. Directed panspermia may have been sent to Earth to start life here, or may be sent from Earth to seed exoplanets with life.Historically, Shklovskii and Sagan (1966) and Crick and Orgel (1973) hypothesized that life on Earth may have been seeded deliberately by other civilizations. Conversely, Mautner and Matloff (1979) and Mautner (1995, 1997) proposed that we ourselves should seed new planetary systems, protoplanetary discs or star-forming clouds with microorganisms, to secure and expand our organic gene/protein life-form. To avoid interference with local life, the targets may be young planetary systems where local life is unlikely. Directed panspermia can be motivated by biotic ethics that value the basic patterns of organic gene/protein life with its unique complexity and unity, and its drive for self-propagation.Belonging to life then implies panbiotic ethics with a purpose to propagate and expand life in space. Directed panspermia for this purpose is becoming possible due to developments in solar sails, precise astrometry, the discovery of extrasolar planets, extremophiles and microbial genetic engineering. Cosmological projections suggests that life in space can then have an immense future.
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