Review
... B) The gas planets are farther from the Sun than the four inner planets C) All the planets orbit in the same direction D) The orbits of Pluto and the other distant dwarf planets are tilted in different directions. 30) Planets orbiting other stars are hard to detect because they A) only reflect light ...
... B) The gas planets are farther from the Sun than the four inner planets C) All the planets orbit in the same direction D) The orbits of Pluto and the other distant dwarf planets are tilted in different directions. 30) Planets orbiting other stars are hard to detect because they A) only reflect light ...
Solutions
... 3. Future Mission. A wealthy benefactor has just given you a large grant to search for Earth-‐like planets around other stars. What would you do? Explain. a. There are many correct answers to this ques ...
... 3. Future Mission. A wealthy benefactor has just given you a large grant to search for Earth-‐like planets around other stars. What would you do? Explain. a. There are many correct answers to this ques ...
Formation of Planets III
... This is because the solid material that inner planets formed from did not include _____________ which are lighter but very abundant, whereas temperature conditions during the formation of the outer planets were much ____________ so the abundant ices were solid and became part of the planets. Today w ...
... This is because the solid material that inner planets formed from did not include _____________ which are lighter but very abundant, whereas temperature conditions during the formation of the outer planets were much ____________ so the abundant ices were solid and became part of the planets. Today w ...
Wrongway Planets_Do Gymnastics
... University. Astronomers have identified more than 400 exoplanets, and most of them are gas giants, like the hot Jupiters. (Exoplanet is short f or "extra-solar planet," which is a planet outside the solar system.) Astronomers would like to find a small, rocky planet not too far from or too close to ...
... University. Astronomers have identified more than 400 exoplanets, and most of them are gas giants, like the hot Jupiters. (Exoplanet is short f or "extra-solar planet," which is a planet outside the solar system.) Astronomers would like to find a small, rocky planet not too far from or too close to ...
ASTRONOMY WORKSHOP
... *explains why the universe is expanding out of control at an accelerated rate ...
... *explains why the universe is expanding out of control at an accelerated rate ...
supplementary notes for space
... what are a few main characteristics of different planets – here are a couple of examples o Mercury is closest planet to the sun and it has no atmosphere, the surface has lots of craters from meteorites hitting it, and it is hot on the side facing the sun but cold on the side facing away from the sun ...
... what are a few main characteristics of different planets – here are a couple of examples o Mercury is closest planet to the sun and it has no atmosphere, the surface has lots of craters from meteorites hitting it, and it is hot on the side facing the sun but cold on the side facing away from the sun ...
1 Our Solar System Lexile 500L 1 We live on planet Earth. Earth is
... Asteroids are large pieces of rock. They orbit the Sun. Most of them are found in the space between Mars and Jupiter. Scientists think that they are leftover chunks of rock from when the solar system was formed. Some are big enough to have their own names. Others are just tiny pieces of rock. ...
... Asteroids are large pieces of rock. They orbit the Sun. Most of them are found in the space between Mars and Jupiter. Scientists think that they are leftover chunks of rock from when the solar system was formed. Some are big enough to have their own names. Others are just tiny pieces of rock. ...
Space Unit Exam /31
... Indicate in the space provided whether the answer is true or false; if false, you must correct the answer to make it true. a. ____ In the beginning, before the ‘big bang’, the universe was very small, dense and cold. _______________________________________________________________ ___________________ ...
... Indicate in the space provided whether the answer is true or false; if false, you must correct the answer to make it true. a. ____ In the beginning, before the ‘big bang’, the universe was very small, dense and cold. _______________________________________________________________ ___________________ ...
3 Habitable Zones in Extrasolar Planetary Systems
... solar system [6], the Martian orbit position was within the HZ up to about 500 million years ago. Jovian-type planets do not have a solid or liquid surface, covered by an atmosphere, near which organisms may exist. Therefore, usually they are considered as inhabitable. But there is the possibility t ...
... solar system [6], the Martian orbit position was within the HZ up to about 500 million years ago. Jovian-type planets do not have a solid or liquid surface, covered by an atmosphere, near which organisms may exist. Therefore, usually they are considered as inhabitable. But there is the possibility t ...
Uniqueness of the Earth, Lebo, 7-30
... Must be one and only one star – Gravity from two or more stars would make stable planetary orbits impossible. If no star (planet was thrown out of planetary system) there would be no energy source. Must be a G-type star: If hotter, UV would extinguish life: If cooler, would have to be so close that ...
... Must be one and only one star – Gravity from two or more stars would make stable planetary orbits impossible. If no star (planet was thrown out of planetary system) there would be no energy source. Must be a G-type star: If hotter, UV would extinguish life: If cooler, would have to be so close that ...
Inner solar system…
... Mercury-Venus-Earth-Mars-Asteroid belt-Jupiter-Saturn-Uranus-Neptune-Kuiper belt (Pluto)-Scattered disc (Eris) ...
... Mercury-Venus-Earth-Mars-Asteroid belt-Jupiter-Saturn-Uranus-Neptune-Kuiper belt (Pluto)-Scattered disc (Eris) ...
Summary of the Presentation
... exoplanet orbits. Thus, the fraction of exoEarths that would have equatorial liquid water throughout their orbits (a reasonable requirement for habitability) can be estimated by using the star luminosity and orbit of each exoplanet to estimate equatorial exoEarth temperature. This was done for exopl ...
... exoplanet orbits. Thus, the fraction of exoEarths that would have equatorial liquid water throughout their orbits (a reasonable requirement for habitability) can be estimated by using the star luminosity and orbit of each exoplanet to estimate equatorial exoEarth temperature. This was done for exopl ...
Quantum Well Electron Gain Structures and Infrared Detector Arrays
... • At that location, expected temperature is VERY high (about 2000K or higher!) • So … Jupiter-like planet, but closer than Mercury “Hot Jupiter” • How do you make something like that???? ...
... • At that location, expected temperature is VERY high (about 2000K or higher!) • So … Jupiter-like planet, but closer than Mercury “Hot Jupiter” • How do you make something like that???? ...
Intelligent life in the Universe
... 1) It consumes food 2) It reacts to its environment in a complex manner 3) It grows and self replicates 4) It produces a large number of chemical reactions At the core of life is aperiodic complexity and not order. A more accurate definition would be: A living objects are a region of order which use ...
... 1) It consumes food 2) It reacts to its environment in a complex manner 3) It grows and self replicates 4) It produces a large number of chemical reactions At the core of life is aperiodic complexity and not order. A more accurate definition would be: A living objects are a region of order which use ...
Explanations to selected mc
... 5. If the hypothesis is true, the earth and the Vulcan must have the same period of rotation. But according to Kepler’s 3rd law, different planets in the same solar system have different orbits and so must have different periods of rotation. (Since T2 a3) 6. (a) On a celestial sphere, Mars general ...
... 5. If the hypothesis is true, the earth and the Vulcan must have the same period of rotation. But according to Kepler’s 3rd law, different planets in the same solar system have different orbits and so must have different periods of rotation. (Since T2 a3) 6. (a) On a celestial sphere, Mars general ...
Middle School - Starry Night Software
... 2. Describe how the planets move around the Sun in elliptical orbits; and the nearcoplanetarity of the orbits, along with the principle of conservation of momentum, is evidence essential to our understanding of how the Solar System was originally formed. ...
... 2. Describe how the planets move around the Sun in elliptical orbits; and the nearcoplanetarity of the orbits, along with the principle of conservation of momentum, is evidence essential to our understanding of how the Solar System was originally formed. ...
NAME
... The amount of reflection of the sun’s light changes as the moon moves in its orbit. The moon orbits the Earth. The sun reflects off the surface of the moon as it orbits. The amount of light the moon reflects changes as it orbits the Earth. ...
... The amount of reflection of the sun’s light changes as the moon moves in its orbit. The moon orbits the Earth. The sun reflects off the surface of the moon as it orbits. The amount of light the moon reflects changes as it orbits the Earth. ...
Chapter 3: the Sun
... which is very small. For example the Ha line is redshifted by only 0.00059 nm! The spectral resolution must therefore be very high. Detecting smaller planets, farther away from the star, is an even more difficult task. ...
... which is very small. For example the Ha line is redshifted by only 0.00059 nm! The spectral resolution must therefore be very high. Detecting smaller planets, farther away from the star, is an even more difficult task. ...
OurSolarSystem_part1
... Most asteroids can be found in the Asteroid Belt, which is located between Mars and Jupiter. Asteroids are rocky and metallic objects that orbit the Sun, but are too small to be considered planets. They are known as minor planets. Asteroids range in size from Ceres, which has a diameter of about 100 ...
... Most asteroids can be found in the Asteroid Belt, which is located between Mars and Jupiter. Asteroids are rocky and metallic objects that orbit the Sun, but are too small to be considered planets. They are known as minor planets. Asteroids range in size from Ceres, which has a diameter of about 100 ...
Astronomy Review
... 52. A(n) _____________________________ is a large group of stars, dust, and gases held together by gravity. 53. Circle the letter of the type of galaxy that the Milky Way is. a. Spiral galaxy ...
... 52. A(n) _____________________________ is a large group of stars, dust, and gases held together by gravity. 53. Circle the letter of the type of galaxy that the Milky Way is. a. Spiral galaxy ...
How Big Is Big
... 8. Arcturus, Pollux and Sirius can be seen on any clear __________ night! 9. Arcturus is big compared to Pollux and Sirius but it’s tiny compared to larger ___________! 10. Antares is about ________ times larger than our Sun in size. But Antares is only about _____ times more massive that the Sun, s ...
... 8. Arcturus, Pollux and Sirius can be seen on any clear __________ night! 9. Arcturus is big compared to Pollux and Sirius but it’s tiny compared to larger ___________! 10. Antares is about ________ times larger than our Sun in size. But Antares is only about _____ times more massive that the Sun, s ...
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.