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Origins of Earth
Origins of Earth

... Milky Way Galaxy Milky Way Galaxy is 100 million light in diameter  Our galaxy contains roughly 400 billion stars  Sun is a very typical star located in one of the arms of the Milky Way Galaxy  Other planetary systems have been found in our galaxy ...
Simon P. Balm Astronomy 5, Test #1, Sample Questions
Simon P. Balm Astronomy 5, Test #1, Sample Questions

... combined mass is slightly greater than the original nucleus B) a heavy nucleus breaks apart into a number of smaller nuclei whose combined mass are less than the original nucleus C) two or more nuclei fuse or stick together to form a heavier nucleus whose combined mass is slightly less than the orig ...
The Earth
The Earth

... big it is. I mean, you may think it’s a long way down the road to the chemist’s, but that's just peanuts to space.  Douglas ...
Planetary Science
Planetary Science

... Observations of the Solar system finds: ◦  Inner planets close in space ◦  All planets orbiting the Sun in the same direction, and more or less in the same plane ◦  Sun rotates in the same direction as the planets orbit ...
The Nine Planets
The Nine Planets

... • Great Red Spot: A storm that has been observed for over 300 years, has a diameter of 1 and a half that of Earth’s • Has 63 known moons (Jupiter is almost a mini-solar system) - some of these moons are so large they resemble planets – Ganymede - largest moon in solar system and has a magnetic field ...
Grade 9 Science Part 3 Other Celestial Bodies
Grade 9 Science Part 3 Other Celestial Bodies

... (broken from asteroids, comets or planets) • Meteors: Meteroids burning up in the earth’s atmosphere (shooting stars!) • Shooting stars are NOT stars • Meteor showers: when earth passes through trail of comet ...
Name
Name

... 36) The planets, the Earth, and the Sun all tend to fall in the same plane called … A) perihelion. B) aphelion. C) the ecliptic. D) retrograde motion. E) the umbra. 37) All stars in the sky appear to lie on the … A) celestial equator. B) celestial sphere. C) zodiac. D) celestial north pole. E) celes ...
Slide 1
Slide 1

... B. A telescope is a tool that uses either: 1/ __________________ lenses mirrors 2/ __________________ ...
Name - MIT
Name - MIT

... A) Sun is too bright. B) Moon is too bright C) Stars are too far away. D) Precession of the Earth’s rotation axis changes the Earth’s North Celestial Pole. E) Direct light strikes the Northern Hemisphere in the summer. 37) All stars in the sky appear to lie on the … A) celestial equator. B) celestia ...
Approximately 14 billion years ago, all matter and energy was
Approximately 14 billion years ago, all matter and energy was

... discoveries made by Voyager 1. ...
Study Guide - James E. Neff
Study Guide - James E. Neff

... What is the cause of magnetic activity? Be able to recognize a few forms of activity: spots, plages, flares, prominences, coronal mass ejections, etc. How does it affect us at the Earth? No questions on: details of solar models (e.g. Table 16-2; Figure 16-3); details of experiments described in Sect ...
Studying Planets in the Solar System
Studying Planets in the Solar System

... 3. As a class, choose the top ten questions to be answered in the planet profile. List these questions on the board. 4. Divide the class into nine groups. Write the name of each planet on a slip of paper and place the slips into a hat. Have each group pick a slip of paper with their assigned planet. ...
Space – Astronomy Review
Space – Astronomy Review

... The Universe is everything that exists, including all matter and energy everywhere. The study of what is beyond Earth is called Astronomy. Groups of stars that form shapes or patterns are called constellations. The Solar System consists of our Sun and all the objects that travel around it. Objects t ...
labor - Glencoe
labor - Glencoe

... A device that produces powerful, coherent, directional, monochromatic light that can be used to excite other atoms; the acronym stands for light amplification by stimulated emission of radiation. ...
Chapter 5 and 6 Study Guide
Chapter 5 and 6 Study Guide

... 7. A hot, glowing ball of gases is a ___star____________. 8. To _revolve___________ means to move around another object. 9. The moon has eight main _phases_______________. 10. A pattern or picture outlined by stars in called a _____constellation___________________. 11. The Moon has many _____craters ...
Lesson 4d Models of the Solar System
Lesson 4d Models of the Solar System

...  Venus has phases (like the moon) and appears to change size  Jupiter has objects orbiting it (moons)  There are dark spots on the sun  The sun rotates and the spots on the ...
THE SOLAR SYSTEM UNITS OF MEASURMENT IN ASTRONOMY
THE SOLAR SYSTEM UNITS OF MEASURMENT IN ASTRONOMY

... BEYOND THE KUIPER BELT, SCIENTIST BELIEVE THERE IS A SPHERICAL CLOUD OF DEBRIS KNOWN AS THE OORT CLOUD. THIS EXTENDS FROM ABOUT 50,000 TO 100,000 AU OR 1 LY TO ABOURT 1.7 LY FROM THE SUN. THIS REGION COULD CONTAIN UP TO 1 TRILLION ICY OBJECTS AND IS THOUGHT TO BE THE ORIGIN OF MOST COMETS. ...
PTYS/ASTR 206 – Section 2 – Spring 2006 Practice Exam 1 Note
PTYS/ASTR 206 – Section 2 – Spring 2006 Practice Exam 1 Note

... A. The Sun was quite energetic and explosive when it first formed. It threw out massive chunks of solid material, which later cooled off to form the terrestrial planets. B. The terrestrial planets were randomly captured by the Sun with assistance from Jupiter – it is not known how they were formed. ...
Mission 1 Glossary
Mission 1 Glossary

... to plan, record and control the movement of a ship or plane Moon - can be any natural object orbiting around another; often refers to the Moon of the Earth (but other planets have moons too.) The Moon of the Earth was probably formed when a large object struck the Earth a long time ago. ...
NASA - Go to the Head of the Solar System
NASA - Go to the Head of the Solar System

... 1. I travel around the sun faster than any other planet. (b.) Mercury It only takes 88 days for Mercury to orbit around the sun. No other planet travels around the sun faster. 2. My name says I am the prettiest planet. I am Earth's twin sister -- the prettier sister. (c.) Venus The planet Venus is s ...
Earth and the Universe Name
Earth and the Universe Name

... of gravity. The center of gravity is the point in the middle of all the material that makes up an object, mass. When a moon orbits a planet, or a planet orbits a star, both bodies are orbiting around a point that lies outside the larger body. The moon does not orbit the exact center of the Earth, bu ...
Midterm Exam: Chs. 1-3, 7-11
Midterm Exam: Chs. 1-3, 7-11

... ____ 21. If the Moon is located at the vernal equinox on September 20, what is the phase of the Moon? a. new b. waxing crescent c. third quarter d. gibbous e. first quarter f. full ____ 22. If a tenth planet were to be discovered with a sidereal period of 200 years, what would be the semimajor axis ...
The eleventh annual AST poster session - Home
The eleventh annual AST poster session - Home

... One thought that has been on humans minds since we first started looking to sky was if we are alone in the universe. Instead of just sitting and waiting for a visitor to come to our planet to answer the question, U.C. Berkeley started recording radio transmissions from space on November 20, 1998 fro ...
The Solar System
The Solar System

... • Clouds on Venus are so dense only a small percentage of sunlight that strikes the top of the clouds reaches the surface. • Much of the heat is absorbed by carbon dioxide in the atmosphere. • Water vapor and later carbon dioxide in the atmosphere created a greenhouse and made the planet very hot (4 ...
Chapter 11 The Solar System - Denbigh Baptist Christian School
Chapter 11 The Solar System - Denbigh Baptist Christian School

... My very economical mother just snatched Uncle Neil’s penny. The “inner” planets (Mercury, Venus, Earth, Mars) are known as TERRESTRIAL planets. Generally these planets are considered to be “small”, “solid” and “relatively close” to each other. Between Mars and Jupiter – asteroid belt The “outer” pla ...
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Astrobiology



Astrobiology is the study of the origin, evolution, distribution, and future of life in the universe: extraterrestrial life and life on Earth. This interdisciplinary field encompasses the search for habitable environments in our Solar System and habitable planets outside our Solar System, the search for evidence of prebiotic chemistry, laboratory and field research into the origins and early evolution of life on Earth, and studies of the potential for life to adapt to challenges on Earth and in outer space. Astrobiology addresses the question of whether life exists beyond Earth, and how humans can detect it if it does. (The term exobiology is similar but more specific—it covers the search for life beyond Earth, and the effects of extraterrestrial environments on living things.)Astrobiology makes use of physics, chemistry, astronomy, biology, molecular biology, ecology, planetary science, geography, and geology to investigate the possibility of life on other worlds and help recognize biospheres that might be different from the biosphere on Earth. The origin and early evolution of life is an inseparable part of the discipline of astrobiology. Astrobiology concerns itself with interpretation of existing scientific data; given more detailed and reliable data from other parts of the universe, the roots of astrobiology itself—physics, chemistry and biology—may have their theoretical bases challenged. Although speculation is entertained to give context, astrobiology concerns itself primarily with hypotheses that fit firmly into existing scientific theories.The chemistry of life may have begun shortly after the Big Bang, 13.8 billion years ago, during a habitable epoch when the Universe was only 10–17 million years old. According to the panspermia hypothesis, microscopic life—distributed by meteoroids, asteroids and other small Solar System bodies—may exist throughout the universe. According to research published in August 2015, very large galaxies may be more favorable to the creation and development of habitable planets than smaller galaxies, like the Milky Way galaxy. Nonetheless, Earth is the only place in the universe known to harbor life. Estimates of habitable zones around other stars, along with the discovery of hundreds of extrasolar planets and new insights into the extreme habitats here on Earth, suggest that there may be many more habitable places in the universe than considered possible until very recently.Current studies on the planet Mars by the Curiosity and Opportunity rovers are now searching for evidence of ancient life as well as plains related to ancient rivers or lakes that may have been habitable. The search for evidence of habitability, taphonomy (related to fossils), and organic molecules on the planet Mars is now a primary NASA objective on Mars.
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