The energy budget of planets
... Earth orbit Define the habitable zone as the range of distances from the Sun for which a planet can have liquid water on its surface Empirically: Venus is inside the habitable zone and Mars outside for the Solar System But… calculating the exact boundaries is hard - depends upon the nature of the pl ...
... Earth orbit Define the habitable zone as the range of distances from the Sun for which a planet can have liquid water on its surface Empirically: Venus is inside the habitable zone and Mars outside for the Solar System But… calculating the exact boundaries is hard - depends upon the nature of the pl ...
Space Unit - Questions and Answers
... include nebulae (clouds of gas). These stars are attracted to each other by the force of gravity and are constantly in motion. We are in the Milky Way Galaxy ...
... include nebulae (clouds of gas). These stars are attracted to each other by the force of gravity and are constantly in motion. We are in the Milky Way Galaxy ...
17.1 What is the solar system?
... and all objects that are gravitationally bound to the sun. • The solar system is roughly divided into the inner planets (Mercury, Venus, Earth, and Mars) and the outer planets (Jupiter, Saturn, Uranus, and ...
... and all objects that are gravitationally bound to the sun. • The solar system is roughly divided into the inner planets (Mercury, Venus, Earth, and Mars) and the outer planets (Jupiter, Saturn, Uranus, and ...
GRADE-5-SCIENCE_REVISION_PAPER-THIRD_TERM-2014
... d. The water in the air below its boiling point is called ___________________ e. The term that means turning water to water vapour is ______________ f. A natural body that moves around a planet is a ________________ g. The second largest planet in the solar system is _________________ h. An instrume ...
... d. The water in the air below its boiling point is called ___________________ e. The term that means turning water to water vapour is ______________ f. A natural body that moves around a planet is a ________________ g. The second largest planet in the solar system is _________________ h. An instrume ...
The solar system
... objects in space that orbit (go around) it. The Sun is orbited by planets, moons, asteroids, comets and other things. ...
... objects in space that orbit (go around) it. The Sun is orbited by planets, moons, asteroids, comets and other things. ...
The Nine Planets
... Also, the atmosphere on Venus is very thick and the light it receives from the Sun is reflected to us. Venus’s atmosphere is made up from mainly carbon dioxide. This gas acts like the glass of a greenhouse and keeps the surface of the planet hot enough to melt lead. ...
... Also, the atmosphere on Venus is very thick and the light it receives from the Sun is reflected to us. Venus’s atmosphere is made up from mainly carbon dioxide. This gas acts like the glass of a greenhouse and keeps the surface of the planet hot enough to melt lead. ...
Union College Spring 2016 Astronomy 50 Lab: Charting the Paths
... to your eye, then the ruler measures the distance along the arc of a circle of radius 57.3 cm. The circumference of this circle is equal to 2R = 2(57.3 cm) = 360 cm. And, since there are 360o in a circle, each cm on the ruler corresponds to one degree. So, to make your cross-staff, simply pin a se ...
... to your eye, then the ruler measures the distance along the arc of a circle of radius 57.3 cm. The circumference of this circle is equal to 2R = 2(57.3 cm) = 360 cm. And, since there are 360o in a circle, each cm on the ruler corresponds to one degree. So, to make your cross-staff, simply pin a se ...
Space Unit - Questions and Answers
... stars are attracted to each other by the force of gravity and are constantly in motion. We are in the Milky Way Galaxy ...
... stars are attracted to each other by the force of gravity and are constantly in motion. We are in the Milky Way Galaxy ...
exercise 3
... The rest is land, mostly in the form of continents that rise above the oceans. For thousands of years, human beings could only wonder about Earth and the other observable planets in the solar system. Many early ideas—for example, that the Earth was a sphere and that it traveled around the Sun—were b ...
... The rest is land, mostly in the form of continents that rise above the oceans. For thousands of years, human beings could only wonder about Earth and the other observable planets in the solar system. Many early ideas—for example, that the Earth was a sphere and that it traveled around the Sun—were b ...
The sun gives off energy all of the time
... where σ is the Stefan-Boltzman constant (5.7 x 10-8 J s-1 m-2 K-4) and Tbb is the blackbody temperature in degrees Kelvin. a. Assuming a planet radiates all the solar power it absorbs, derive an expression for its blackbody temperature. How does this depend on the planet’s radius? ...
... where σ is the Stefan-Boltzman constant (5.7 x 10-8 J s-1 m-2 K-4) and Tbb is the blackbody temperature in degrees Kelvin. a. Assuming a planet radiates all the solar power it absorbs, derive an expression for its blackbody temperature. How does this depend on the planet’s radius? ...
Third Nine Weeks Review – Sky Patterns
... Outer Planets – these planets are farther away from the sun and have longer orbits ( Jupiter, Saturn, Neptune, and Uranus) – they are large and their surfaces are made of gas. Earth, Sun, and Moon: Earth: ...
... Outer Planets – these planets are farther away from the sun and have longer orbits ( Jupiter, Saturn, Neptune, and Uranus) – they are large and their surfaces are made of gas. Earth, Sun, and Moon: Earth: ...
Extrasolar planets
... With a detection limit of 3 m/s, this makes Earth-like planets very hard to find. The first discovery of any extrasolar planet was in 1995 for the star 51 Peg. Now more than 120 Jupiter-size planets have been found around other stars using this method. They have orbits with short periods and high ec ...
... With a detection limit of 3 m/s, this makes Earth-like planets very hard to find. The first discovery of any extrasolar planet was in 1995 for the star 51 Peg. Now more than 120 Jupiter-size planets have been found around other stars using this method. They have orbits with short periods and high ec ...
2.13 Understanding our Universe
... • If you are lucky you may see an object with a bright tail • This is likely to be a comet, which are made from rock, dry ice and frozen gases such as CO2 and CH4.They come from outside our Solar System • You may also see ‘shooting stars’ which are meteors, these are bits of dust and rock which ente ...
... • If you are lucky you may see an object with a bright tail • This is likely to be a comet, which are made from rock, dry ice and frozen gases such as CO2 and CH4.They come from outside our Solar System • You may also see ‘shooting stars’ which are meteors, these are bits of dust and rock which ente ...
First evidence for water ice clouds found outside solar
... characterized. Their findings are the result of 151 images taken over three nights and combined. The object, named WISE J085510.83-071442.5, or W0855, was first seen by NASA's Wide-Field Infrared Explorer mission and published earlier this year. But it was not known if it could be detected by Earth- ...
... characterized. Their findings are the result of 151 images taken over three nights and combined. The object, named WISE J085510.83-071442.5, or W0855, was first seen by NASA's Wide-Field Infrared Explorer mission and published earlier this year. But it was not known if it could be detected by Earth- ...
Other Planetary Systems
... …in many of the planetary systems detected so far, we find big, massive planets quite close to the parent stars (especially with the ‘wobble’ technique; using transits is better able to find smaller planets.) It will take many years, and improving technology, to allow the confirmed detection of a So ...
... …in many of the planetary systems detected so far, we find big, massive planets quite close to the parent stars (especially with the ‘wobble’ technique; using transits is better able to find smaller planets.) It will take many years, and improving technology, to allow the confirmed detection of a So ...
History of Astronomy
... *** Einstein explained the true nature of gravity. • That it’s not a force but a pathway that a mass takes around more massive objects. This theory was proven correct by the deflection of starlight observed during a 1919 eclipse. c. ...
... *** Einstein explained the true nature of gravity. • That it’s not a force but a pathway that a mass takes around more massive objects. This theory was proven correct by the deflection of starlight observed during a 1919 eclipse. c. ...
Chapter04
... whenever the two planets pass each other. If there is an arrowhead on each end of the rod, you can show that each planet sees the other in retrograde motion when they pass. Another idea is to ask the students to imagine how we would see Mars move first if the Earth were stationary and Mars moved (st ...
... whenever the two planets pass each other. If there is an arrowhead on each end of the rod, you can show that each planet sees the other in retrograde motion when they pass. Another idea is to ask the students to imagine how we would see Mars move first if the Earth were stationary and Mars moved (st ...
Astronomy 1400: Exam 3 version 1
... A. Earth has just as much carbon dioxide as Venus, but most of it is locked up in carbonate rocks rather than being free in the atmosphere. B. Earth has just as much carbon dioxide as Venus, but it is hard to detect because Earth’s atmosphere is so much colder than Venus. C. Earth’s volcanoes outgas ...
... A. Earth has just as much carbon dioxide as Venus, but most of it is locked up in carbonate rocks rather than being free in the atmosphere. B. Earth has just as much carbon dioxide as Venus, but it is hard to detect because Earth’s atmosphere is so much colder than Venus. C. Earth’s volcanoes outgas ...
THE PLANETS
... It takes less than 88 Earth days for Mercury to orbit around the sun which is its year. Because of a lack of an atmosphere, the temperature rises above 800°F while on the dark side it falls rapidly to -300°F. Mercury rotates slowly on its axis. It completes one rotation every 59 Earth days which is ...
... It takes less than 88 Earth days for Mercury to orbit around the sun which is its year. Because of a lack of an atmosphere, the temperature rises above 800°F while on the dark side it falls rapidly to -300°F. Mercury rotates slowly on its axis. It completes one rotation every 59 Earth days which is ...
*Students will be required to draw and label the solar system.
... the only star in our solar system. The only star in our solar system. A large ball of rock or gas that revolves around the sun ...
... the only star in our solar system. The only star in our solar system. A large ball of rock or gas that revolves around the sun ...
ASTRONOMY
... a. high tide – moon’s gravity pulls water toward point on Earth’s surface closest to moon ...
... a. high tide – moon’s gravity pulls water toward point on Earth’s surface closest to moon ...
Powers of ten notation
... Disadvantages of Kepler’s model No explanation as to why planets moved according to his three laws Still no parallax ...
... Disadvantages of Kepler’s model No explanation as to why planets moved according to his three laws Still no parallax ...
OUR SOLAR SYSTEM
... Elements heavier than hydrogen and helium were formed in the cores of ancient and exploding stars, so the first generation of stars had to die before the universe could be enriched with these atoms. The oldest stars contain few metals, while stars born later have more. This high metallicity is thoug ...
... Elements heavier than hydrogen and helium were formed in the cores of ancient and exploding stars, so the first generation of stars had to die before the universe could be enriched with these atoms. The oldest stars contain few metals, while stars born later have more. This high metallicity is thoug ...
Solar System, Galaxy, and Universe (ES) V.4
... elements; hydrogen, helium. Production of energy—fusion, radiation. Planetary systems may form during this process— heavy and light elements, hot interiors of earth-like planets. Age of the solar system. Real-world contexts: Nebulas considered to be star-forming regions, supernovas, nuclear fusion r ...
... elements; hydrogen, helium. Production of energy—fusion, radiation. Planetary systems may form during this process— heavy and light elements, hot interiors of earth-like planets. Age of the solar system. Real-world contexts: Nebulas considered to be star-forming regions, supernovas, nuclear fusion r ...
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.