29_worlds_unnumbered..
... • Very many possible places for life! • We are just starting to be able to detect planets around other stars. ...
... • Very many possible places for life! • We are just starting to be able to detect planets around other stars. ...
Measuring Distances Beyond the Solar System The Characteristics
... Light travelling from the Sun distance 0.000016 ly away, takes approximately 8 minutes to reach Earth Light travelling from Vega distance 25 ly takes approximately 25 years to reach Earth. ...
... Light travelling from the Sun distance 0.000016 ly away, takes approximately 8 minutes to reach Earth Light travelling from Vega distance 25 ly takes approximately 25 years to reach Earth. ...
PSC1010 Introduction to Astronomy Quiz #3 Review Thursday 3
... (geological activity [crustal plate movement, folded mountains, volcanic activity, erosion] will smooth over impact craters) -concept of young surface (craters smoothed over, surface crust replaced by geological activity or changed by erosion) and old surface (heavily cratered). Differences among in ...
... (geological activity [crustal plate movement, folded mountains, volcanic activity, erosion] will smooth over impact craters) -concept of young surface (craters smoothed over, surface crust replaced by geological activity or changed by erosion) and old surface (heavily cratered). Differences among in ...
Lecture (Powerpoint)
... If Earth were moved to Venus' orbit, runaway greenhouse effect would occur And that explains biggest difference between the two today Difference in surface temperature, atmosphere composition,... Much larger effect than naïve estimate from distance to Sun Large effect of atmosphere Planets as near a ...
... If Earth were moved to Venus' orbit, runaway greenhouse effect would occur And that explains biggest difference between the two today Difference in surface temperature, atmosphere composition,... Much larger effect than naïve estimate from distance to Sun Large effect of atmosphere Planets as near a ...
Question 1 (7-5 thru 7-7 PPT Questions)
... form than the lifespan of the accretion disk around the star. 2. According to the disk-instability model, dense regions forming in the disk accrete more material and suddenly collapse to form one or more planets. However, such instabilities require massive disks, which are not commonly observed. ...
... form than the lifespan of the accretion disk around the star. 2. According to the disk-instability model, dense regions forming in the disk accrete more material and suddenly collapse to form one or more planets. However, such instabilities require massive disks, which are not commonly observed. ...
Formation of the Solar System
... Over 150 planets have been identified on other stars. What we believe to be accretion disks have been observed. Materials from Moon, Mars, meteorites appear to be of similar ages and composition Composition of the planets (inner and outer) Motion of planets and sun Law of gravity Existence of solar ...
... Over 150 planets have been identified on other stars. What we believe to be accretion disks have been observed. Materials from Moon, Mars, meteorites appear to be of similar ages and composition Composition of the planets (inner and outer) Motion of planets and sun Law of gravity Existence of solar ...
A lesson on Gravity and the Solar System - ICE-CSIC
... But the most important force in the Universe It helped create the Sun, the Planets of the Solar System, out of dust and gas By bringing huge amounts of matter close together, it provides the conditions for the nuclear fusion reactions in the Sun and all the other Stars: H + H ...
... But the most important force in the Universe It helped create the Sun, the Planets of the Solar System, out of dust and gas By bringing huge amounts of matter close together, it provides the conditions for the nuclear fusion reactions in the Sun and all the other Stars: H + H ...
How mighty Jupiter could have changed Earth`s habitability
... affect the seasons, while changing the orbit would changes. alter the amount of sun on the surface. Horner, meanwhile, is examining scenarios under Waltham, meanwhile, says there is a discrepancy which giant planets send giant impactors, such as asteroids, towards inner planets. For Earth, a between ...
... affect the seasons, while changing the orbit would changes. alter the amount of sun on the surface. Horner, meanwhile, is examining scenarios under Waltham, meanwhile, says there is a discrepancy which giant planets send giant impactors, such as asteroids, towards inner planets. For Earth, a between ...
Which of the following represent the best explanation we currently
... planet’s sidereal period around the Sun is directly proportional to the cube of its semi-major axis. This law relates the amount of time for the planet to complete one orbit around the Sun to the planet’s average distance from the Sun. If we measure the orbital periods (P) in years and distances (a) ...
... planet’s sidereal period around the Sun is directly proportional to the cube of its semi-major axis. This law relates the amount of time for the planet to complete one orbit around the Sun to the planet’s average distance from the Sun. If we measure the orbital periods (P) in years and distances (a) ...
File
... In H.G. Well’s science fiction story War of the Worlds, creatures from Mars invade Earth. It’s just a fantasy but people have always been interested in the red planet. Why does the planet look orange or slightly red? The color is caused by iron compounds in the dust and rocks on the planet. You migh ...
... In H.G. Well’s science fiction story War of the Worlds, creatures from Mars invade Earth. It’s just a fantasy but people have always been interested in the red planet. Why does the planet look orange or slightly red? The color is caused by iron compounds in the dust and rocks on the planet. You migh ...
Planets of Our Solar System
... • No atmosphere due to – low gravitational pull (it’s the smallest planet) – high daytime temperatures ...
... • No atmosphere due to – low gravitational pull (it’s the smallest planet) – high daytime temperatures ...
Dead Earth – Lesson 2 – Solar System
... similarly sized objects had been found, but not classified as planets • These include the largest known asteroid - ‘Ceres’ and a large object beyond Pluto ‘Eris’ ...
... similarly sized objects had been found, but not classified as planets • These include the largest known asteroid - ‘Ceres’ and a large object beyond Pluto ‘Eris’ ...
Document
... • Estimated number of technological civilizations present in the Milky Way galaxy is given by the average rate of star formation fraction of stars having planetary systems average number of planets within the habitable zone for various types of star and star system fraction of habitable planet ...
... • Estimated number of technological civilizations present in the Milky Way galaxy is given by the average rate of star formation fraction of stars having planetary systems average number of planets within the habitable zone for various types of star and star system fraction of habitable planet ...
answer key
... ordered strangely because they are relics from a late-1800s system that sorted stars by number of spectral lines. That system was alphabetical, A-Q. In 1901 stars were re-sorted by color/temp (they are connected) scrambling the letters. The Sun is a G2v (“2” indicates a 1-10 rank within a letter – a ...
... ordered strangely because they are relics from a late-1800s system that sorted stars by number of spectral lines. That system was alphabetical, A-Q. In 1901 stars were re-sorted by color/temp (they are connected) scrambling the letters. The Sun is a G2v (“2” indicates a 1-10 rank within a letter – a ...
The “Big Bang” Theory
... • Matter started to “_______” back together • This was due to __________ • The ________, _______ and __________ formed from these clumps of dust and gas • There are __________ of galaxies in the universe and each galaxy consists of __________ of stars ...
... • Matter started to “_______” back together • This was due to __________ • The ________, _______ and __________ formed from these clumps of dust and gas • There are __________ of galaxies in the universe and each galaxy consists of __________ of stars ...
The Solar System
... into 2 halves,1 dark and 1 light • Farthest planet from Earth • 800 Earths can fit inside • 33 moons ...
... into 2 halves,1 dark and 1 light • Farthest planet from Earth • 800 Earths can fit inside • 33 moons ...
Homework Problems for Quiz 1 – AY 5 – Spring 2013
... 7. You measure the spectrum of a solid green sphere of aluminum and the highest intensity is at a wavelength of 2 × 10−4 cm. What is the temperature of this sphere? ...
... 7. You measure the spectrum of a solid green sphere of aluminum and the highest intensity is at a wavelength of 2 × 10−4 cm. What is the temperature of this sphere? ...
CLOZE-ing in on Science!
... The planets are different in many ways, but they also have some similar properties to one another. One similar property is that all of the planets orbit, or circle around, the Sun. This path takes the planets different amounts of time depending on how far, or distant, they are from the Sun. The oute ...
... The planets are different in many ways, but they also have some similar properties to one another. One similar property is that all of the planets orbit, or circle around, the Sun. This path takes the planets different amounts of time depending on how far, or distant, they are from the Sun. The oute ...
File
... b. Saturn, Pluto, Neptune, and Venus c. Jupiter, Saturn, Uranus and Neptune d. Jupiter, Saturn, Neptune, and Venus 5) The Moon is unlivable compare with Earth because a. there is no air to breathe b. there is no water to drink ...
... b. Saturn, Pluto, Neptune, and Venus c. Jupiter, Saturn, Uranus and Neptune d. Jupiter, Saturn, Neptune, and Venus 5) The Moon is unlivable compare with Earth because a. there is no air to breathe b. there is no water to drink ...
Solar System powerpoint
... • No atmosphere due to – low gravitational pull (it’s the smallest planet) – high daytime temperatures ...
... • No atmosphere due to – low gravitational pull (it’s the smallest planet) – high daytime temperatures ...
Team 1:The Outer Planets and Comets, Asteroids, and Meteors
... atmosphere contains visible clouds Scientists think that Neptune is slowly shrinking causing its core to heat up It has at least 13 moons going around it Its largest moon is called Triton which has its own thin atmosphere ...
... atmosphere contains visible clouds Scientists think that Neptune is slowly shrinking causing its core to heat up It has at least 13 moons going around it Its largest moon is called Triton which has its own thin atmosphere ...
Planetary habitability
Planetary habitability is the measure of a planet's or a natural satellite's potential to develop and sustain life. Life may develop directly on a planet or satellite or be transferred to it from another body, a theoretical process known as panspermia. As the existence of life beyond Earth is unknown, planetary habitability is largely an extrapolation of conditions on Earth and the characteristics of the Sun and Solar System which appear favourable to life's flourishing—in particular those factors that have sustained complex, multicellular organisms and not just simpler, unicellular creatures. Research and theory in this regard is a component of planetary science and the emerging discipline of astrobiology.An absolute requirement for life is an energy source, and the notion of planetary habitability implies that many other geophysical, geochemical, and astrophysical criteria must be met before an astronomical body can support life. In its astrobiology roadmap, NASA has defined the principal habitability criteria as ""extended regions of liquid water, conditions favourable for the assembly of complex organic molecules, and energy sources to sustain metabolism.""In determining the habitability potential of a body, studies focus on its bulk composition, orbital properties, atmosphere, and potential chemical interactions. Stellar characteristics of importance include mass and luminosity, stable variability, and high metallicity. Rocky, terrestrial-type planets and moons with the potential for Earth-like chemistry are a primary focus of astrobiological research, although more speculative habitability theories occasionally examine alternative biochemistries and other types of astronomical bodies.The idea that planets beyond Earth might host life is an ancient one, though historically it was framed by philosophy as much as physical science. The late 20th century saw two breakthroughs in the field. The observation and robotic spacecraft exploration of other planets and moons within the Solar System has provided critical information on defining habitability criteria and allowed for substantial geophysical comparisons between the Earth and other bodies. The discovery of extrasolar planets, beginning in the early 1990s and accelerating thereafter, has provided further information for the study of possible extraterrestrial life. These findings confirm that the Sun is not unique among stars in hosting planets and expands the habitability research horizon beyond the Solar System.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. 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. On 4 November 2013, astronomers reported, based on Kepler space mission data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of Sun-like stars and red dwarfs within the Milky Way. 11 billion of these estimated planets may be orbiting Sun-like stars. The nearest such planet may be 12 light-years away, according to the scientists.