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Word doc - UC-HiPACC - University of California, Santa Cruz
Word doc - UC-HiPACC - University of California, Santa Cruz

... “With many observations, theorists have less freedom to speculate how planets form,” explains Brad M. S. Hansen, associate professor of physics and astronomy at the University of California, Los Angeles. “Any theoretical or computational models have to explain what we actually find.” One big early s ...
File
File

... Earth’s orbit around the Sun is determined by the balance of the Sun’s gravitational pull on Earth and Earth’s forward momentum as it travels around the Sun. Without the Sun’s gravitational pull, Earth would not move in a circle around the Sun, but would continue moving in a straight line through th ...
The Nine Planets
The Nine Planets

... relate to the process of scientific discovery? Scientists observed that Uranus was a plant; then they discovered that its motion was not smooth. They made a hypothesis that another object was tugging on Uranus. They predicted where the other object was; then they tested their hypothesis and discover ...
Review Lecture 5
Review Lecture 5

... Johannes Kepler (1571-1630) Brahe’s assistant calculated planetary positions using heliocentric assumption. Isaac Newton (1642-1727) explained all by introducing the Universal Law of Gravitation. ...
Introduction to Astronomy and Astrophysics Introduction to
Introduction to Astronomy and Astrophysics Introduction to

... o  Cassini in 1672 using observations of Mars from Paris and French Guiana measured Earth-Mars distance. Using Kepler’s 3rd Law, he then calculated Earth-Sun distance (140 ...
Astronomy Review (Cope) 64KB Jun 09 2013 08:13:01 PM
Astronomy Review (Cope) 64KB Jun 09 2013 08:13:01 PM

... 18. Starting with the speed of light being 3.00 x 10 meters per second (or 300,000 km per second), calculate how far light will travel in one (365 day) year. Stars ...
g9u4c11part 2
g9u4c11part 2

1 a. List the plants from smallest to largest: Mercury, Mars, Venus
1 a. List the plants from smallest to largest: Mercury, Mars, Venus

... There  is  less  information  on  the  outer  planets  compared  to  the  inner  planets  for   several  reasons.  Firstly,  the  inner  planets  can  be  seen  through  a  telescope   making  viewing  the  planet  so  much  easier  t ...
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trek across the milky way

... • There are two prominent rings that can be seen from Earth that are around Saturn • These rings are composed of very small particles, like water ice. • Saturn as 34 known satellites. ...
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Chapter 1 Structure and Bonding

... 1. Assistant to Tycho Brahe, who had the best observations yet of the sky 2. Devised 3 laws from the data: Testable Rules or Empirical Laws a) Planetary orbits are ellipses, not circles b) Orbital radius sweeps out equal areas in equal times ...
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The Solar System Inner Planets 14.3

... • Mercury, Venus, Earth and Mars are called the inner planets • The four inner planets are small and dense and have rocky surfaces • They are often called the terrestrial planets ...
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Class 2 Solar System Characteristics Formation Exosolar Planets

... isotopes such as iron-60 which only form in exploding, short-lived stars. ...
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space I have Who has

... Who has the term that means the sunlit portion of the Moon is growing from night to night? ...
Solar System book - Science Link Cafe
Solar System book - Science Link Cafe

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SNC1P - MsKhan

... -planets are not ________________, but they appear bright like stars because they reflect the light of the Sun -we can see Mercury, Venus, Mars, Jupiter, and Saturn from Earth with the unaided eye (with no binoculars or telescopes) -moons = smaller celestial objects orbiting around ________________ ...
planetary comparisons
planetary comparisons

Physical Science Lecture Notes
Physical Science Lecture Notes

... a. Nebula – a huge gas cloud made up mainly of Hydrogen that collapse down on itself and compresses the gas down into a Protostar b. Star is “born” when the protostar has contracting tight enough for Hydrogen to fuse into Helium, this releases the light and energy we normally associate with a “norma ...
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No Slide Title

... the Canadian Shield (Quebec), 214 million years ago. The original crater was 100 km in diameter. ...
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UCI OBSERVATORY VISITOR NIGHTS Solar System Crossword

... 2. These beautiful features of Saturn are made of small pieces of ice and dust 3. The largest planet in the Solar System 5. The Sun is like a leopard because it often has these 10. Astronomers use the Hubble Space ____ to study planets 12. The Sun is not a planet, but is this 14. This planet could f ...
07 September: The Solar System in a Stellar Context
07 September: The Solar System in a Stellar Context

... Distances to stars; parsecs and light years ...
Slide 1
Slide 1

... The Outer Planets ...
Why Is the Sun a Star
Why Is the Sun a Star

... Why Is the Sun a Star? The Sun is the center of our Solar System. It is so massive that its strong gravity attracts all the planets and their moons, comets, asteroids and meteors into orbit around it. Its light provides Earth with 99% of all the energy used on our planet and we see its reflected lig ...
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... (93 million miles, 150 million kilometers). It’s a useful unit when describing distances in a solar system. The Earth is 1 AU (one Astronomical Unit) from the Sun. Jupiter is 5.2 AU from the Sun. Pluto is 40 AU from the Sun. Distance to the next closest star (after the Sun) ...
The most accepted theory of the origin of the solar system is the
The most accepted theory of the origin of the solar system is the

... gravitationally attracted large quantities of gas (mainly hydrogen and helium) left over from the solar nebula. As a result, both planets became quite massive, developing thick atmospheres, and with increasing depth and thus pressure, layers of liquid. However, since Uranus and Neptune reside in a r ...
The Sun
The Sun

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Formation and evolution of the Solar System



The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.This widely accepted model, known as the nebular hypothesis, was first developed in the 18th century by Emanuel Swedenborg, Immanuel Kant, and Pierre-Simon Laplace. Its subsequent development has interwoven a variety of scientific disciplines including astronomy, physics, geology, and planetary science. Since the dawn of the space age in the 1950s and the discovery of extrasolar planets in the 1990s, the model has been both challenged and refined to account for new observations.The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later been captured by their planets. Still others, such as the Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets often shifted due to gravitational interactions. This planetary migration is now thought to have been responsible for much of the Solar System's early evolution.In roughly 5 billion years, the Sun will cool and expand outward many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the far distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets. Some planets will be destroyed, others ejected into interstellar space. Ultimately, over the course of tens of billions of years, it is likely that the Sun will be left with none of the original bodies in orbit around it.
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