Quiz # 5
... B) relatively slow growth of smaller objects by collisions and mutual gravitational attraction. C) the freezing of immense gas clouds by the cold temperature of space. D) the break-up by tidal distortion of one single large companion body to the Sun. ...
... B) relatively slow growth of smaller objects by collisions and mutual gravitational attraction. C) the freezing of immense gas clouds by the cold temperature of space. D) the break-up by tidal distortion of one single large companion body to the Sun. ...
No Slide Title
... This supports the hypothesis that Mars may once have had the conditions needed to support life. ...
... This supports the hypothesis that Mars may once have had the conditions needed to support life. ...
Johnnie French Lab 1
... A star is a gaseous sphere that produces enough heat in its interior by nuclear fusion to withstand the force of gravity. Planet (from the Greek word meaning wanderer) Originally, they were little points of light that moved through the constellations. Now they are reasonably large objects that orbit ...
... A star is a gaseous sphere that produces enough heat in its interior by nuclear fusion to withstand the force of gravity. Planet (from the Greek word meaning wanderer) Originally, they were little points of light that moved through the constellations. Now they are reasonably large objects that orbit ...
Part I: Moons, Asteroids, and Comets
... 3. Do all planets have moons? _________________________________________________________________________ 4. What is an asteroid? _________________________________________________________________________ 5. Where are most asteroids located? __________________________________________________________ ...
... 3. Do all planets have moons? _________________________________________________________________________ 4. What is an asteroid? _________________________________________________________________________ 5. Where are most asteroids located? __________________________________________________________ ...
Monday Sept 14
... A planetary system is a star and all of the planets, moons, and other objects and materials that orbit that star. Until very recently, there was only one known planetary system Even though many People suspected that most stars had planets orbiting them, we had no scientific evidence to support th ...
... A planetary system is a star and all of the planets, moons, and other objects and materials that orbit that star. Until very recently, there was only one known planetary system Even though many People suspected that most stars had planets orbiting them, we had no scientific evidence to support th ...
Astronomy Powerpoint
... • Core reaches 1 million C, energy is given off • When most of the hydrogen is used up, becomes a red giant • Depending on size, becomes a white dwarf or a supernova ...
... • Core reaches 1 million C, energy is given off • When most of the hydrogen is used up, becomes a red giant • Depending on size, becomes a white dwarf or a supernova ...
File
... 11. What is the hottest planet in the solar system? Venus 12. What is Earth’s atmosphere made of? Water vapor and other gases 13. What features do the inner planets share? They are made of rock and metal and have a solid surface and closer to the sun. 14. What is the Great Red Spot and how long has ...
... 11. What is the hottest planet in the solar system? Venus 12. What is Earth’s atmosphere made of? Water vapor and other gases 13. What features do the inner planets share? They are made of rock and metal and have a solid surface and closer to the sun. 14. What is the Great Red Spot and how long has ...
Solar System Vocabulary
... Why do stars that are larger and brighter than the sun not appear this way from Earth? ...
... Why do stars that are larger and brighter than the sun not appear this way from Earth? ...
Solar System Cloze
... they are big and made mostly of gas. _______________ is the largest planet in the solar system. _________________ is famous for its rings. _______________ also has rings but is not as famous as Saturn. _____________ is named after the god of the sea. Planetoids: Asteroids and Comets There are many o ...
... they are big and made mostly of gas. _______________ is the largest planet in the solar system. _________________ is famous for its rings. _______________ also has rings but is not as famous as Saturn. _____________ is named after the god of the sea. Planetoids: Asteroids and Comets There are many o ...
Life: Definition, Origin, Criteria
... Requirements for the star • Solar like Main Sequence star, stable for billions of years • Less than 1.5 times massive than the Sun; otherwise too much UV • More than 0.3 times the mass of the Sun; large warm region near the star for liquid water • Limited to no more than 10 billion stars ...
... Requirements for the star • Solar like Main Sequence star, stable for billions of years • Less than 1.5 times massive than the Sun; otherwise too much UV • More than 0.3 times the mass of the Sun; large warm region near the star for liquid water • Limited to no more than 10 billion stars ...
Life: Definition, Origin, Criteria
... Requirements for the star • Solar like Main Sequence star, stable for billions of years • Less than 1.5 times massive than the Sun; otherwise too much UV • More than 0.3 times the mass of the Sun; large warm region near the star for liquid water • Limited to no more than 10 billion stars ...
... Requirements for the star • Solar like Main Sequence star, stable for billions of years • Less than 1.5 times massive than the Sun; otherwise too much UV • More than 0.3 times the mass of the Sun; large warm region near the star for liquid water • Limited to no more than 10 billion stars ...
Solar System Cloze
... Form: Neptune gas giants Pluto solar Mars nine asteroids Jupiter temperature orbit water Saturn dinosaurs Earth Venus Mercury ...
... Form: Neptune gas giants Pluto solar Mars nine asteroids Jupiter temperature orbit water Saturn dinosaurs Earth Venus Mercury ...
Fill in the blanks below with words from this box: Neptune solar
... they are big and made mostly of gas. _______________ is the largest planet in the solar system. _________________ is famous for its rings. _______________ also has rings but is not as famous as Saturn. _____________ is named after the god of the sea. Planetoids: Asteroids and Comets There are many o ...
... they are big and made mostly of gas. _______________ is the largest planet in the solar system. _________________ is famous for its rings. _______________ also has rings but is not as famous as Saturn. _____________ is named after the god of the sea. Planetoids: Asteroids and Comets There are many o ...
Life: Definition, Origin, Criteria
... • Planets should form naturally out of stellar ‘debris’ in the disk • We can now detect many planets, from Jupiter to Earth size ...
... • Planets should form naturally out of stellar ‘debris’ in the disk • We can now detect many planets, from Jupiter to Earth size ...
Solar System Unit Study Guide
... the sun and all of the objects that orbit around it the center of our solar system ...
... the sun and all of the objects that orbit around it the center of our solar system ...
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.