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Ch. 4 review
Ch. 4 review

... The planetary system is highly differentiated. Asteroids are very old, and not similar to terrestrial planets or Jovian planets. The Kuiper belt is a group of asteroid-sized icy bodies orbiting outside the orbit of Neptune. (KBO – Kuiper Belt Objects) The Oort Cloud is composed of icy cometary objec ...
Instructor Notes
Instructor Notes

... Oort Cloud comet  ...
The solar system
The solar system

... Comparing size and distance • The Sun is by far ...
Homework #5 Chapter 3: Solar System Due
Homework #5 Chapter 3: Solar System Due

... some within 0.1 AU, even planets massive enough to be "gas giants." It is possible, however, that planetary systems such as our own would not produce enough motion in their stars to detect from Earth. The effects of such systems would be impossible to detect with current techniques and technology. ...
Unit 3: The Solar System Historical Models of the Solar System
Unit 3: The Solar System Historical Models of the Solar System

... Ptolemy (100-170 CE) - His geocentric model was used for 1400 years. - All orbits of all bodies in space traveled in a perfect circle at a constant speed - “Wheels on wheels” model – planets move in small circles that moved in larger circles ...
Universe and Solar System
Universe and Solar System

...  Classified by  Color: Red or Blue  Temperature: Red=Cool, Blue=Hot  Size: Sun is medium…most are smaller than that, white dwarfs ...
b. Compare the similarities and differences of planets to the stars in
b. Compare the similarities and differences of planets to the stars in

... of how this standard might be assessed. Please use these as an example when you are developing your own formative assessments. Remember formative assessment is to be given throughout the teaching of a standard to help you guide your instruction based on students needs. A good formative assessment sh ...
Solar System - U
Solar System - U

... The Sun is the star at the center of the Solar System. It has a diameter of about 109 times that of Earth, and its mass accounts for about 99.86% Solar System. Chemically, about three quarters of the Sun's mass consists of hydrogen, while the rest is mostly helium. The Sun formed about 4.567 billi ...
Solar System knowledge
Solar System knowledge

... those often seen in our galaxy. It is probable that an external event triggered the collapse of the cloud, since its parts were in equilibrium. Scientists have put forward the hypothesis that it could have been the explosion of a nearby supernova, i.e. a star with a great mass that has an explosive ...
Survey of the Solar Systems
Survey of the Solar Systems

... The solar system formed from a cloud of cold gas and dust called the solar nebula about 4.6 ...
The Solar System
The Solar System

... • All planets orbit Sun counterclockwise as seen from Earth’s north pole and in nearly the same plane as the earth (only Mercury and Pluto deviate slightly). ...
Chapter 8 Survey of Solar Systems
Chapter 8 Survey of Solar Systems

... There is still minor debris left over from the formation of the solar system ...
Document
Document

... what are sometimes called the assumptions of mediocrity: – Because life on Earth depends on just a few basic molecules. – Because the elements that make up these molecules are (to a greater or lesser extent) common to all stars. – If the laws of science we know apply to the entire universe (which we ...
History of Astronomy Scavenger Hunt
History of Astronomy Scavenger Hunt

... 22. I discovered the first active galaxy. Who am I? Carl Seyfert 23. I study physics and predicted that black holes emit radiation. Who am I? Stephen Hawking 24. I developed the laws of planetary motion and realized the orbits were elliptical. Who am I? Johannes Kepler 25. I showed that other galaxi ...
Our Universe - Etiwanda E
Our Universe - Etiwanda E

... pass the sun several times?  Most asteroids are between the orbits of what two planets? ...
Are we Alone? The Search for Life Beyond the
Are we Alone? The Search for Life Beyond the

... Are we Alone? - The Search for Life beyond the Earth. ...
EARTH LIKE PLANETS SHOULD BE QUITE COMMON IN THE
EARTH LIKE PLANETS SHOULD BE QUITE COMMON IN THE

... Now a new study by Northwestern University astronomers, using recent data from the 300 planets discovered orbiting other stars, turns that view on its head. "These other planetary systems don't look like the solar system at all," said Prof Frederic Rasio, senior author of a study in the journal Scie ...
Clues to the Origin of the Solar System
Clues to the Origin of the Solar System

... across. At this time the objects are referred to as planetesimals. ! outer gas cooler than the inner gas !metal stuff can condense (freeze) at high temperatures while volatile stuff condenses at lower temps !at Jupiter temperature cool enough to freeze water further out ammonia and methane freezing ...
Life: Definition, Origin, Criteria
Life: Definition, Origin, Criteria

... • Planets should form naturally out of stellar ‘debris’ in the disk • We can now detect many planets, from Jupiter to Earth size ...
Life: Definition, Origin, Criteria
Life: Definition, Origin, Criteria

... • Planets should form naturally out of stellar ‘debris’ in the disk • We can now detect many planets, from Jupiter to Earth size ...
ppt
ppt

... All planets orbit the Sun in same sense. The Sun and all planets (apart from Venus, Uranus, & Pluto) rotate in the same sense as they orbit the Sun. Inner planets are small and rocky, but outer planets are large and gaseous. There are also asteroids and comets ...
Document
Document

... that is radial to us, (i.e. directly towards or away from us), and is based on the Doppler shift in the star's light as the star moves towards or away from us. ...
Project topics
Project topics

... 1. Equipment and instruments that explore the universe (telescopes, satellites, probes, rockets, shuttles etc.). 2. Electromagnetic spectrum and its importance in astronomy. 3. Spectroscopes and the spectrums of stars. Include information about a spectroscope, spectrums of different gases, the Doppl ...
Video review
Video review

... Birth of the Solar System 1. The first modern theory of the formation of planets and solar systems from a nebular cloud was proposed by philosopher Immanuel _________ in the 1700s. 2. A collapsing gas cloud (nebula) that form a star system increases its rotation rate because of the conservation of _ ...
Beginnings - Big Picture
Beginnings - Big Picture

... the first organisms we would classify as alive? The most famous experiment into the origin of life on our planet was performed by Stanley Miller and Harold Urey in 1953. They tried to replicate the conditions of the early Earth in the lab, mixing water vapour with the gases that were thought to have ...
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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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