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Handout 3 1-2 ppt
Handout 3 1-2 ppt

... 1. In addition to the sun, planets, and their moons, what occupies the space in our solar system? • The solar system includes million of smaller bodies; some are tiny bits of dust or ice; others are as large as small moons. ...
Gravitation Worksheet
Gravitation Worksheet

... 4. Discuss the variation in ‘g’ with altitude and depth. 5. Derive expression for escape velocity. 6. State and prove Kepler’s second and third law of planetary motion 7. How much faster than its present rate should earth rotate about its axis so that the weight of a body at equator becomes zero? 8. ...
Unit 2 Study Guide - Effingham County Schools
Unit 2 Study Guide - Effingham County Schools

121mtr09
121mtr09

...  Implies Moon formed in the vicinity of Mars or was somehow ripped out from the Earth’s mantle.  Also the mass ratio of the moon to the earth is very high. 11. Describe Tycho’s experiment to prove that the Earth orbited the Sun. Why was he unable to prove this assertion from his data? Mixed Perfor ...
solar system review jeopardy
solar system review jeopardy

... The planet with rings that can be easily seen. ...
Document
Document

... Jupiter is named after the Roman king of the Gods. It would take 11 earths lined up next to each other to get from one side of Jupiter to the other, it would also take 317 earths to equal Jupiter's mass. Jupiter's red spot is a gigantic storm that has been there for over 300 years! If Jupiter had 80 ...
The solar system
The solar system

Extrasolar planets
Extrasolar planets

... First detection of any carbon-bearing molecule on a planet outside the Solar System! Swain et al., Nature, March 2008 Also confirmed previous discovery of water on this planet ...
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File

... composed of solid matter. Saturn, Uranus and Neptune are also gas ...
Chapter 3
Chapter 3

... A star is a hot ball of glowing gases. ...
Space 2006
Space 2006

Word Pro - Smvocab
Word Pro - Smvocab

... Cosmology - the theory of the nature of the Universe. Earthshine - light from the Sun reflected by the Earth that illuminates the moon. Fixed Stars - those stars and other heavenly bodies that maintain fixed patterns in the sky. Hypothesis - an unproved theory tentatively accepted to explain certain ...
Stars - St. Mary School
Stars - St. Mary School

... Groups of stars that exist in clusters (held together by gravity) Galaxies come in different shapes and sizes:  Elliptical (round or egg-shape)  Spiral (Like a pinwheel)  Irregular (Not elliptical or spiral) Our galaxy, the Milky Way, is spiral shaped. 3. Constellations  Made of a group of stars ...
Quiz # 2
Quiz # 2

... Bonus. The spectrum of a star shows an equivalent set of dark absorption lines to those of the Sun, but with one exception. Every line appears at a slightly longer wavelength, shifted toward the red end of the spectrum. What conclusion can be drawn from this observation? A) A cloud of cold gas and ...
National Geographic “Space Quest” Notes
National Geographic “Space Quest” Notes

Lesson plan on the solar system for Year 6
Lesson plan on the solar system for Year 6

... The Earth’s axis is tilted at 23.5 to the plane of its rotation (anticlockwise). The Earth is held in orbit round Sun by the Sun’s gravitational pull. Earths moves at 30km/s The Sun is a star. All stars give out a large amount of heat, light and other forms of energy The Moon does not spin on its a ...
Lesson Plan
Lesson Plan

Space – Our Solar System
Space – Our Solar System

Day-7
Day-7

... Method is robust but you must be patient: Require at least 3 transits, preferably 4 with same brightness change, duration and temporal separation (the first two establish a possible period, the third confirms it) ...
Geocentric vs. Heliocentric
Geocentric vs. Heliocentric

Sun, Earth, Moon Foldable Sun Facts
Sun, Earth, Moon Foldable Sun Facts

... Medium-size, main-sequence star Distance from Earth (mean) = 1.5 x 108 km Light takes 8 min 19 s to travel to Earth Made of mostly hydrogen and helium plasma (not gas) Mass = 1.99 x 1030 kg (about 330,000 Earths) About 4.5 billion years old Not made of fire, but burning plasma by nuclear reaction Ha ...
Document
Document

Document
Document

... Gravitational forces allow the inner planets to accrue and compact solid matter (including light and heavy atoms) Solar radiation blew gases (primarily hydrogen, helium) away from inner planets These gases were collected and condensed into the gas giants (Jupiter, Saturn, Uranus, Neptune) Beyond Nep ...
Panel 3 Ingles ALTA
Panel 3 Ingles ALTA

coSmoS in youR PockET
coSmoS in youR PockET

... The Universe is everything that exists: all planets, stars, galaxies and all of the other objects in space. A galaxy is a large collection of stars, along with gas, dust and other stuff. The galaxy that we live in is called the Milky Way. A Star is a massive ball of luminous hot gas, held together ...
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Rare Earth hypothesis



In planetary astronomy and astrobiology, the Rare Earth Hypothesis argues that the origin of life and the evolution of biological complexity such as sexually reproducing, multicellular organisms on Earth (and, subsequently, human intelligence) required an improbable combination of astrophysical and geological events and circumstances. The hypothesis argues that complex extraterrestrial life is a very improbable phenomenon and likely to be extremely rare. The term ""Rare Earth"" originates from Rare Earth: Why Complex Life Is Uncommon in the Universe (2000), a book by Peter Ward, a geologist and paleontologist, and Donald E. Brownlee, an astronomer and astrobiologist, both faculty members at the University of Washington.An alternative view point was argued by Carl Sagan and Frank Drake, among others. It holds that Earth is a typical rocky planet in a typical planetary system, located in a non-exceptional region of a common barred-spiral galaxy. Given the principle of mediocrity (also called the Copernican principle), it is probable that the universe teems with complex life. Ward and Brownlee argue to the contrary: that planets, planetary systems, and galactic regions that are as friendly to complex life as are the Earth, the Solar System, and our region of the Milky Way are very rare.
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