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Chapter 10 - Macmillan Learning
Chapter 10 - Macmillan Learning

... Freed_c10_381-419_st_hr1.indd 416 ...
ASTR 105 Intro Astronomy: The Solar System
ASTR 105 Intro Astronomy: The Solar System

... •  When dealing with really big quantities, the small details become trivial –  For example, when we say that the nearest galaxy is 2 million (2,000,000) light-years away, does it really matter if its actually 2,000,001? ...
What is it? - Carmenes - Calar Alto Observatory
What is it? - Carmenes - Calar Alto Observatory

... Over 500 exoplanets have been discovered since the annus mirabilis of 1995 (see the Extrasolar Planets Encyclopaedia for an updated catalogue). However, most of them are inhospitable giant gaseous planets with high temperatures that resemble those of the coolest stars and orbit very close to their s ...
Our Universe
Our Universe

... of our solar system where comets are located until knocked into a new, closer orbit. ...
An Introduction to Astronomy and Cosmology
An Introduction to Astronomy and Cosmology

... • BUT 5 magnitude steps = 100 in brightness • So Z = (100)1/5 = 2.512 ...
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... Launched in 1989, the Galileo Spacecraft, on its way to Jupiter, captured close-up images of asteroids Gaspra and Ida. Launched in 1996, the Near Earth Asteroid Rendezvous - Shoemaker (NEAR Shoemaker), passed near asteroid 253 Mathilde and established orbit around 433 Eros. In 2001, NEAR Shoemaker “ ...
Numbers to Keep in Mind
Numbers to Keep in Mind

... §  Heliocentric Correction: because the Earth orbits the Sun, the light-travel time from an astronomical object may vary by up to ± 8.3 min. This is the heliocentric time correction (sometimes called the Rømer delay). (Note: there is also a heliocentric velocity correction, due to the Earth’s motio ...
Chapter 8
Chapter 8

... If a massive star shrinks enough so that the escape velocity is equal to or greater than the speed of light, then it has become a black hole. Particles entering it would suffer disintegration. How are black holes detected? SFA ...
The Ceres Connection - MIT Lincoln Laboratory
The Ceres Connection - MIT Lincoln Laboratory

... position in the solar system. For example, nearEarth asteroids (NEAs) have orbits that cross or approach Earth’s orbit. Trojans revolve around the Sun in the same orbit as Jupiter, either ~60∞ ahead or ~60∞ behind the planet. Centaurs roam the outer solar system, generally between Jupiter and Neptun ...
Astro 10 Practice Test 1
Astro 10 Practice Test 1

... we go over the test in class. I will hand this packet back to you when we go over the test, and you’ll keep it. ...
Jupiter - V
Jupiter - V

... include its rings, it’s phenomenal size, it’s a gas giant and could even be called a fake star because it’s a lot like the sun. With all of its moons, it’s sometimes called its own mini-solar system. • I hope you have enjoyed my presentation. ...
Teacher Guide pages
Teacher Guide pages

... while others have orbits that take them well beyond Jupiter. The Kuiper Belt beyond Pluto is a recently discovered asteroid ring that has pieces that are larger than the planet Pluto. Most meteors are thought to be fragments of asteroids or rock and dust that burn up in the atmosphere as they approa ...
Your Guide to the Universe
Your Guide to the Universe

... 3. Remember - even though it looks to us as if the Sun goes around the Earth, the real situation is that the Earth goes around the Sun. 4. The Sun is way bigger than the Earth. For those of you who are curious, the Sun’s diameter is 1 392 000 kilometres and the Earth’s diameter is 12 756 kilomet ...
AP HW 7
AP HW 7

... alone on Deimos and want to play a one-person game of baseball. You would be the pitcher, and you would be the batter! (a) With what speed would you have to throw a baseball so that it would go into a circular orbit just above the surface and return to you so you could hit it? Do you think you could ...
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TOP 78 ASTRONOMY FACTS 1. The solar system consists of the

... 37. The different shapes of the moon visible from Earth are called phases. 38. The phase of the moon we see depends on how much of the sunlit side of the moon faces Earth. 39. A complete cycle of moon phases takes about 29.5 days to complete. 40. During the first quarter phase and the third quarter ...
Gravitation and Orbital Motion
Gravitation and Orbital Motion

... gravitational pull of the Moon is partially responsible for the tides of the sea. The Moon pulls on you, too, so if you are on a diet it is better to weigh yourself when this heavenly body is directly overhead! If you have a mass of 85.0 kg, how much less do you weigh if you factor in the force exer ...
Learning About Stars
Learning About Stars

... sky for thousands of years. When ancient people looked up, the stars looked almost identical to what we see today. Stars do change, but they change VERY slowly. We will probably not notice changes to the stars in our lifetime. ...
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Rope of Life For YSP Volunteers: How to Run this Activity Logistics

... Based on past experience running this activity, you can expect… -many students will be surprised at how long it took for life to first appear on earth -they might think dinosaurs existed right after the earth formed -they might think humans have been around much longer than we have -they are surpris ...
Question paper
Question paper

... C Gravitational and electrostatic forces both obey an inverse square law. D Gravitational and electrostatic field strength are both scalar quantities. (Total for Question 2 = 1 mark) 3 Two different sized boxes, P and Q, both contain the same number of nitrogen molecules. The molecules in box P have ...
Sirius Astronomer - Orange County Astronomers
Sirius Astronomer - Orange County Astronomers

... much smaller than the spiral and elliptical galaxies seen today. So over the lifetime of galaxies they must feed on material to make new stars and grow into large galaxies. The new study found that at the start of those adolescent years, smooth gas flows into galaxies were the preferred method of fe ...
Naked Eye, Binocular, or Small Backyard Telescope Night Sky
Naked Eye, Binocular, or Small Backyard Telescope Night Sky

... believed   to   be   the   result   of   a   large   collision   between   the   Earth   and   another   “planetesimal”  (a  clump  of  dust,  gas,  and  rock  formed  early  in  the  formation  history  of   the  Solar  System  that ...
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Frostburg State Planetarium presents

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1) Suppose that a planet was discovered that has twice the mass
1) Suppose that a planet was discovered that has twice the mass

... A) The star is approaching you with the speed of 3,200 km/s. B) The star is receding (moving away) from you with the speed of 3,200 km/s. C) The star is approaching you with the speed of 320,000 km/s. D) The star is receding (moving away) from you with the speed of 320,000 km/s. of an absorption lin ...
Goals of the day Clickers Order of Magnitude Astronomy
Goals of the day Clickers Order of Magnitude Astronomy

... the local group). The remnants from such explosions disperse in about 10,000 years. A.  The supernova remnant still exists now, and we will watch it disperse over the next 10,000 Earth years. B.  In reality, the supernova remnant has already dispersed, but we will watch it disperse over the next 10, ...
4-6 Script
4-6 Script

... inferring and communicating The student demonstrates an understanding of cycles influenced by energy from the sun and by Earth’s position and motion in our solar system by: SD3.1 [4]: recognizing changes to length of daylight over time and its relationship to seasons. The student demonstrates an und ...
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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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