Some space objects are visible to the human eye.
... your bare eyes are part of a galaxy called the Milky Way. A galaxy is a group of millions or billions of stars held together by their own gravity. If the solar system were the size of a penny, the Milky Way would stretch from Chicago to Dallas. Most stars in the Milky Way are so far away that our ga ...
... your bare eyes are part of a galaxy called the Milky Way. A galaxy is a group of millions or billions of stars held together by their own gravity. If the solar system were the size of a penny, the Milky Way would stretch from Chicago to Dallas. Most stars in the Milky Way are so far away that our ga ...
unit1solarsystem-practicetest
... a good idea of the types of questions to expect on the test. Some of the questions that appear here may also appear on the test. Part 1: Multiple Choice (1 mark each) 1. The Big Bang Theory describes the formation of ______ a. The solar system b. The universe c. The sun d. The moon 2. What is the ca ...
... a good idea of the types of questions to expect on the test. Some of the questions that appear here may also appear on the test. Part 1: Multiple Choice (1 mark each) 1. The Big Bang Theory describes the formation of ______ a. The solar system b. The universe c. The sun d. The moon 2. What is the ca ...
Midterm Review -- Astronomy Unit
... Chunks of rocks that fell from outer space and are now sitting on the Earth’s surface: a. Meteorites b. Meteors c. Asteroids ...
... Chunks of rocks that fell from outer space and are now sitting on the Earth’s surface: a. Meteorites b. Meteors c. Asteroids ...
Astronomy
... often tell that a dog is walking it’s owner without seeing the dog, as you watch the person being pulled this way and that. This is how scientists detect massive planet that are far away. They look for stars that are wobbling. The less massive planets do not produce such a visible pull on their star ...
... often tell that a dog is walking it’s owner without seeing the dog, as you watch the person being pulled this way and that. This is how scientists detect massive planet that are far away. They look for stars that are wobbling. The less massive planets do not produce such a visible pull on their star ...
(Earth-like) planets
... on the Earth that came from Mars. One fell in Nakhla, Egypt, in 1911. It weighed 10 kg. The most famous one (ALH84001) was discovered in the Allan Hills of Antarctica. It is dated to be 4.5 billion years old. In a remarkable paper published in 1996, geologists claimed that this meteorite had evidenc ...
... on the Earth that came from Mars. One fell in Nakhla, Egypt, in 1911. It weighed 10 kg. The most famous one (ALH84001) was discovered in the Allan Hills of Antarctica. It is dated to be 4.5 billion years old. In a remarkable paper published in 1996, geologists claimed that this meteorite had evidenc ...
ASTRO OTTER JUNIOR
... This presentation would be suited for a wide range of grade levels. The development of Astronomy is discussed beginning with Aristotle and other ancient Greeks. Ptolemy's geocentric model and a short description of epicycles is compared to the Copernican heliocentric model. The contributions by Gali ...
... This presentation would be suited for a wide range of grade levels. The development of Astronomy is discussed beginning with Aristotle and other ancient Greeks. Ptolemy's geocentric model and a short description of epicycles is compared to the Copernican heliocentric model. The contributions by Gali ...
SETI
... – Within the last 2 million years on Earth – Less than 1/1000 the time since life appeared ...
... – Within the last 2 million years on Earth – Less than 1/1000 the time since life appeared ...
Midterm II Jeopardy
... $200 - This planet occasionally has dust storms which obscure its ENTIRE surface. (Mars) $400 - You can only see these planets close to the horizon (45 degrees or less). (Venus & Mercury) $600 - This is how we observed the rings around Uranus. (Occultation) $800 - These two planets most closely rese ...
... $200 - This planet occasionally has dust storms which obscure its ENTIRE surface. (Mars) $400 - You can only see these planets close to the horizon (45 degrees or less). (Venus & Mercury) $600 - This is how we observed the rings around Uranus. (Occultation) $800 - These two planets most closely rese ...
Today`s Powerpoint
... The sun will cross in front of the center of the Milky Way But this has happened many times before No significant increase in gravitational interaction ...
... The sun will cross in front of the center of the Milky Way But this has happened many times before No significant increase in gravitational interaction ...
Why We Have Seasons
... (combined with Earth’s revolution around the Sun) * ARNT caused by the changing distance from the Earth to the Sun that results from the shape of Earth’s orbit. – axis is tilted –revolve around the sun The Ecliptic - Straight path on the celestial sphere the sun traces - A plane (described by earths ...
... (combined with Earth’s revolution around the Sun) * ARNT caused by the changing distance from the Earth to the Sun that results from the shape of Earth’s orbit. – axis is tilted –revolve around the sun The Ecliptic - Straight path on the celestial sphere the sun traces - A plane (described by earths ...
WK8
... "One of the most impressive discoveries was the origin of the energy of the stars. One of the men who discovered this was out with his girl friend the night after he realized that nuclear reactions must be going on in the stars in order to make them shine. She said "Look at how pretty the stars shin ...
... "One of the most impressive discoveries was the origin of the energy of the stars. One of the men who discovered this was out with his girl friend the night after he realized that nuclear reactions must be going on in the stars in order to make them shine. She said "Look at how pretty the stars shin ...
Document
... as planets and stars) and understand their motions and features. The observations led scientists to develop more completed theories about the solar system and the universe. ...
... as planets and stars) and understand their motions and features. The observations led scientists to develop more completed theories about the solar system and the universe. ...
Things to do today Terminal, “Astronomy is Fun”
... •Inferior planet epicycles were fixed to the Earth-Sun line • This explained why Mercury & Venus never strayed far from the Sun! ...
... •Inferior planet epicycles were fixed to the Earth-Sun line • This explained why Mercury & Venus never strayed far from the Sun! ...
Integrative Studies 410 Our Place in the Universe
... How far away is the Moon? • The Greeks used a special configuration of Earth, Moon and Sun (link) in a lunar eclipse • Can measure EF in units of Moon’s diameter, then use geometry and same angular size of Earth and Moon to determine Earth-Moon ...
... How far away is the Moon? • The Greeks used a special configuration of Earth, Moon and Sun (link) in a lunar eclipse • Can measure EF in units of Moon’s diameter, then use geometry and same angular size of Earth and Moon to determine Earth-Moon ...
1. Which of the following statements is incorrect concerning sidereal
... A. The celestial spheres do not have just one common centre. B. The motions of the Sun are not its motions, but the motion of Earth. C. The Earth follow an elliptical orbit in its revolution around the Sun D. What appears to us as retrograde and forward motion of the planets is not their own, but th ...
... A. The celestial spheres do not have just one common centre. B. The motions of the Sun are not its motions, but the motion of Earth. C. The Earth follow an elliptical orbit in its revolution around the Sun D. What appears to us as retrograde and forward motion of the planets is not their own, but th ...
8th Grade Science Pre
... living organisms to understand how they are related. The theory of evolution was developed before scientists discovered DNA; however, the theory supports these new data. What does this sequence of events tell us about the theory of evolution? A. It is a bad theory because it makes scientists biased. ...
... living organisms to understand how they are related. The theory of evolution was developed before scientists discovered DNA; however, the theory supports these new data. What does this sequence of events tell us about the theory of evolution? A. It is a bad theory because it makes scientists biased. ...
Name
... B) the varying speed of the Earth in its orbit about the Sun. C) the precession of the Earth's rotation axis. D) the tilt of the Earth's rotation axis relative to the ecliptic. E) the tilt of the Moon's orbital plane relative to the ecliptic. 36) Which object is not considered a star? A) The Sun B) ...
... B) the varying speed of the Earth in its orbit about the Sun. C) the precession of the Earth's rotation axis. D) the tilt of the Earth's rotation axis relative to the ecliptic. E) the tilt of the Moon's orbital plane relative to the ecliptic. 36) Which object is not considered a star? A) The Sun B) ...
Solar System Marius A
... The Moon is Earth's only natural satellite. It is one of the largest natural satellites in the Solar System, and, among planetary satellites, the largest relative to the size of the planet it orbits (its primary). It is the seconddensest satellite among those whose densities are known (after Jupiter ...
... The Moon is Earth's only natural satellite. It is one of the largest natural satellites in the Solar System, and, among planetary satellites, the largest relative to the size of the planet it orbits (its primary). It is the seconddensest satellite among those whose densities are known (after Jupiter ...
Solar System Teacher Notes
... Some planets have many satellites. Gravity causes the orbits of planets around the Sun. Planets have an orbit that is clear of any asteroids. Pluto has asteroids in its orbit. ...
... Some planets have many satellites. Gravity causes the orbits of planets around the Sun. Planets have an orbit that is clear of any asteroids. Pluto has asteroids in its orbit. ...
File
... 48. A bit of matter that enters Earth's atmosphere and survives to reach the ground is called a. a meteor. b. a meteoroid. c. a meteorite. d. a minor planet. e. an asteroid. 49. A meteor shower is produced when a. a large number of sporadic meteors are observed. b. the Earth passes through the aste ...
... 48. A bit of matter that enters Earth's atmosphere and survives to reach the ground is called a. a meteor. b. a meteoroid. c. a meteorite. d. a minor planet. e. an asteroid. 49. A meteor shower is produced when a. a large number of sporadic meteors are observed. b. the Earth passes through the aste ...
Week 20 Satellites and Probes
... Since the 1950s, the human race has launched satellites and space probes that to this day are very important sources of scientific data about our planet, those of our solar system, and other stars and their systems. Here, we will discuss several of the more recent space probes and satellites. ...
... Since the 1950s, the human race has launched satellites and space probes that to this day are very important sources of scientific data about our planet, those of our solar system, and other stars and their systems. Here, we will discuss several of the more recent space probes and satellites. ...
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.