NASA Training Activity 2 Astronomy
... o It's day (243 Earth days) is longer than it's year (about 225 Earth days). o Hottest planet: Averages 464 ° C because there is so much greenhouse gas. Earth – terrestrial o Just the right distance from the _________________. o Allowed water to develop which is the key to life. Mars – terrestrial o ...
... o It's day (243 Earth days) is longer than it's year (about 225 Earth days). o Hottest planet: Averages 464 ° C because there is so much greenhouse gas. Earth – terrestrial o Just the right distance from the _________________. o Allowed water to develop which is the key to life. Mars – terrestrial o ...
Exoplanets Rising: Understanding Doppler Shift
... Exo means outside of and Planet means Wanderer ...
... Exo means outside of and Planet means Wanderer ...
The Solar System - MHS-Integrated
... What are Nebulae? Nebula are cosmic clouds of gas and dust floating in space. Nebulae are the basic building blocks of the universe. They contain the elements from which stars and solar systems are ...
... What are Nebulae? Nebula are cosmic clouds of gas and dust floating in space. Nebulae are the basic building blocks of the universe. They contain the elements from which stars and solar systems are ...
Notes 21 Inner Solar System
... Inner Planets (Terrestrial Planets) common traits Solid Surface High Density (rocky) Few or no moons No Rings Weak Magnetic Field Close to the Sun Slow rotation Closely spaced orbits Small mass/size Mercury: 2nd hottest 1/3 gravity and 1/3 size of Earth has most craters (of all planets) ...
... Inner Planets (Terrestrial Planets) common traits Solid Surface High Density (rocky) Few or no moons No Rings Weak Magnetic Field Close to the Sun Slow rotation Closely spaced orbits Small mass/size Mercury: 2nd hottest 1/3 gravity and 1/3 size of Earth has most craters (of all planets) ...
Source: https://www
... cycle in regulating carbon dioxide in a planet's atmosphere. Work on this particular process by Penn State scientists, including Professor James Kasting, has shown that the habitable zone extends farther from a star than originally assumed. In the case of the Solar System, the Earth is inside of thi ...
... cycle in regulating carbon dioxide in a planet's atmosphere. Work on this particular process by Penn State scientists, including Professor James Kasting, has shown that the habitable zone extends farther from a star than originally assumed. In the case of the Solar System, the Earth is inside of thi ...
exam_review_space
... 42. This the largest planet in the Solar System and it has a Great Red Spot:______________________. 43. This planet is the second largest in the Solar System and has several rings: ___________________. 44. This planet is unusual because its axis of rotation is on its side: _________________________. ...
... 42. This the largest planet in the Solar System and it has a Great Red Spot:______________________. 43. This planet is the second largest in the Solar System and has several rings: ___________________. 44. This planet is unusual because its axis of rotation is on its side: _________________________. ...
Solar system power point
... • A. There are no stars between the Earth and the Moon • B. One star is between the Earth and the Moon • C. A few stars are between the Earth and the Moon • D. There are many stars between the Earth and the Moon. • E. Several stars are between the Moon and the edge of our solar system. ...
... • A. There are no stars between the Earth and the Moon • B. One star is between the Earth and the Moon • C. A few stars are between the Earth and the Moon • D. There are many stars between the Earth and the Moon. • E. Several stars are between the Moon and the edge of our solar system. ...
Our_Solar_System
... Venus is like a big oven because its clouds make it have a greenhouse effect. There are pancake volcanoes on venus. ...
... Venus is like a big oven because its clouds make it have a greenhouse effect. There are pancake volcanoes on venus. ...
solar system study guide
... The sun is composed of gases – helium and hydrogen The sun is composed of layers – core, radiative zone, convective zone, photosphere, chromosphere, corona The corona is hotter than the surface of the sun The sun is the closest star to us The sun is the center of our solar system and provides light ...
... The sun is composed of gases – helium and hydrogen The sun is composed of layers – core, radiative zone, convective zone, photosphere, chromosphere, corona The corona is hotter than the surface of the sun The sun is the closest star to us The sun is the center of our solar system and provides light ...
9ol.ASTRONOMY 1 ... Identify Terms - Matching (20 @ 1 point each =...
... 29. According to our theory of solar system formation, what three major changes occurred in the solar nebula as it shrank in size? 30. According to our present theory of solar system formation, why were solid planetesimals able to grow larger in the outer solar system than in the inner solar system? ...
... 29. According to our theory of solar system formation, what three major changes occurred in the solar nebula as it shrank in size? 30. According to our present theory of solar system formation, why were solid planetesimals able to grow larger in the outer solar system than in the inner solar system? ...
Lecture 1 The Big Picture: Origin of the Earth
... The planets can be divided into two groups The inner terrestrial (Earth-like) planets (Mercury, Venus, Earth, Mars): small, dense The outer Jovian (Jupiter-like) planets (Jupiter, Saturn, Uranus, and Neptune): gaseous, giant, low density Pluto is an exception; it is an "icy planet". A pla ...
... The planets can be divided into two groups The inner terrestrial (Earth-like) planets (Mercury, Venus, Earth, Mars): small, dense The outer Jovian (Jupiter-like) planets (Jupiter, Saturn, Uranus, and Neptune): gaseous, giant, low density Pluto is an exception; it is an "icy planet". A pla ...
PH507 - University of Kent
... 4. The apparent magnitude of a star is modified by the extinction A() according to: m() = M() + 5 log d – 5 + A(). Determine the extinction which would produce an optical depth of 10. ...
... 4. The apparent magnitude of a star is modified by the extinction A() according to: m() = M() + 5 log d – 5 + A(). Determine the extinction which would produce an optical depth of 10. ...
astronomy final exam - Physics and Astronomy
... What is the probability of a technological civilization existing around a 10 solar mass star? Which probabilities enter into the Drake Equation? Life as we know it is based on what substances? How would you estimate the present number of technical civilizations in our galaxy? Why is carbon is so imp ...
... What is the probability of a technological civilization existing around a 10 solar mass star? Which probabilities enter into the Drake Equation? Life as we know it is based on what substances? How would you estimate the present number of technical civilizations in our galaxy? Why is carbon is so imp ...
21. Solar System Formation
... 2. As the planetesimals grew, they became large enough to attract each other. 3. Finally, only a few planets were left. ...
... 2. As the planetesimals grew, they became large enough to attract each other. 3. Finally, only a few planets were left. ...
ExamView - Untitled.tst
... a. their size and density. b. their rates of rotation. c. their atmospheres. d. their direction of rotation. 14. Which is the smallest terrestrial planet? a. Mars b. Mercury c. Venus d. Earth 15. The atmospheres of the gas giant planets cannot escape into space because a. the gases are too heavy. b. ...
... a. their size and density. b. their rates of rotation. c. their atmospheres. d. their direction of rotation. 14. Which is the smallest terrestrial planet? a. Mars b. Mercury c. Venus d. Earth 15. The atmospheres of the gas giant planets cannot escape into space because a. the gases are too heavy. b. ...
The sun
... Pluto is a small rocky object that lies at the very edge of the solar system. The planet is so far out it takes light from the sun about 5 and one half hours to reach Pluto in contrast to the 8 minutes it takes to reach Earth. ...
... Pluto is a small rocky object that lies at the very edge of the solar system. The planet is so far out it takes light from the sun about 5 and one half hours to reach Pluto in contrast to the 8 minutes it takes to reach Earth. ...
Chapter 23
... Jupiter has been visited by 8 spacecraft. These were Pioneer 10, Pioneer 11, Voyager 1 and 2, Galileo, Ulysses, Cassini and New Horizons. The very first mission to explore Jupiter was Pioneer 10, an American spacecraft launched in 1972. This was a true pioneering mission in that, before it left Eart ...
... Jupiter has been visited by 8 spacecraft. These were Pioneer 10, Pioneer 11, Voyager 1 and 2, Galileo, Ulysses, Cassini and New Horizons. The very first mission to explore Jupiter was Pioneer 10, an American spacecraft launched in 1972. This was a true pioneering mission in that, before it left Eart ...
AST101_lect_18
... • <1 Gyr from now: Earth becomes uninhabitable • 5 Gyr from now: Sun becomes a red giant ...
... • <1 Gyr from now: Earth becomes uninhabitable • 5 Gyr from now: Sun becomes a red giant ...
Quarter 3 Benchmark Study Guide w/ Answer Key
... 27. Planet’s orbits are very large, so scientists express distance in the solar system in Astronomical Units. 28. The presence of craters in large, smooth plains tells scientists that, volcanism is no longer occurring. 29. What did plate tectonics cause on Mars? The planet's mantle moved, pushing up ...
... 27. Planet’s orbits are very large, so scientists express distance in the solar system in Astronomical Units. 28. The presence of craters in large, smooth plains tells scientists that, volcanism is no longer occurring. 29. What did plate tectonics cause on Mars? The planet's mantle moved, pushing up ...
Document
... Pluto is named after the Greek god of the underworld Pluto was reclassified from a plant to a dwarf plant in ...
... Pluto is named after the Greek god of the underworld Pluto was reclassified from a plant to a dwarf plant in ...
Planets & Motions
... • Formed from a nebula (cloud of dust and gas). Cloud comes together due to gravity. • Three Categories ...
... • Formed from a nebula (cloud of dust and gas). Cloud comes together due to gravity. • Three Categories ...
File
... • Sometimes they are called terrestrial planets = Earth-like • They are relatively small and have solid cores and rocky crusts ...
... • Sometimes they are called terrestrial planets = Earth-like • They are relatively small and have solid cores and rocky crusts ...
Temperature and Formation of Our Solar System
... Neptune, and Pluto all formed at temperatures colder than this. ...
... Neptune, and Pluto all formed at temperatures colder than this. ...
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.