Assessing the Possibility of Biological Complexity on Other
... other worlds is rare in frequency but large in absolute number. Keywords: exoplanets; biocomplexity; evolution; habitability ...
... other worlds is rare in frequency but large in absolute number. Keywords: exoplanets; biocomplexity; evolution; habitability ...
3-planets-of-the-solar-system
... 1. How does the period of revolution of Hermes compare to the period of revolution of the planets shown in the diagram? A) Hermes has a longer period of revolution than Mercury, but a shorter period of revolution than Venus, Earth, and Mars. B) Hermes has a shorter period of revolution than Mercury ...
... 1. How does the period of revolution of Hermes compare to the period of revolution of the planets shown in the diagram? A) Hermes has a longer period of revolution than Mercury, but a shorter period of revolution than Venus, Earth, and Mars. B) Hermes has a shorter period of revolution than Mercury ...
Measuring Stellar Distances
... To gain a real physical understanding of stars we must determine their intrinsic energy outputs (also known as Luminosity). Think about it for a moment – suppose you had no prior knowledge of what stars actually were – that you lived in a time where they could be anything. If you simply look up into ...
... To gain a real physical understanding of stars we must determine their intrinsic energy outputs (also known as Luminosity). Think about it for a moment – suppose you had no prior knowledge of what stars actually were – that you lived in a time where they could be anything. If you simply look up into ...
PDF Full-text
... other worlds is rare in frequency but large in absolute number. Keywords: exoplanets; biocomplexity; evolution; habitability ...
... other worlds is rare in frequency but large in absolute number. Keywords: exoplanets; biocomplexity; evolution; habitability ...
Transits of extrasolar moons around luminous giant planets
... to follow a universal formation law (Canup & Ward 2006). We need to keep in mind, though, that these planets orbit the outer regions of the solar system, where stellar illumination is negligible for moon formation (Heller & Pudritz 2015a). However, many giant exoplanets are found in extremely short- ...
... to follow a universal formation law (Canup & Ward 2006). We need to keep in mind, though, that these planets orbit the outer regions of the solar system, where stellar illumination is negligible for moon formation (Heller & Pudritz 2015a). However, many giant exoplanets are found in extremely short- ...
Planetary Science - Columbia Falls Junior High
... 1) Find the time between sunrise and sunset. 2) Divide that time in half. 3) Add that time to the ...
... 1) Find the time between sunrise and sunset. 2) Divide that time in half. 3) Add that time to the ...
Slide 1
... Exoplanet surveys • Exoplanetary microlensing is a low probability phenomenon. • In order to monitor many potential events, we need — A Wide-field survey — Pointed at a region that is dense in stars, e.g. the galactic bulge ...
... Exoplanet surveys • Exoplanetary microlensing is a low probability phenomenon. • In order to monitor many potential events, we need — A Wide-field survey — Pointed at a region that is dense in stars, e.g. the galactic bulge ...
HISTORY OF ASTRONOMY Largely on the basis of
... (1842-1907) in Germany, the science of astrophysics was born. By spreading the light of the celestial bodies into the constituent colors of the SPECTRUM, each interspersed with lines characteristic of the elements present, a powerful new tool was given to the astronomer. The ability to determine the ...
... (1842-1907) in Germany, the science of astrophysics was born. By spreading the light of the celestial bodies into the constituent colors of the SPECTRUM, each interspersed with lines characteristic of the elements present, a powerful new tool was given to the astronomer. The ability to determine the ...
Document
... Universe is expanding since all the galaxies, with the exception of other galaxies in the Local Group Galaxy Cluster, show a red shift. Within the Local Group, some show a red shift and others a blue shift, since some are moving toward the Milky Way and ...
... Universe is expanding since all the galaxies, with the exception of other galaxies in the Local Group Galaxy Cluster, show a red shift. Within the Local Group, some show a red shift and others a blue shift, since some are moving toward the Milky Way and ...
Astronomy - Educator Pages
... -4th most mass, 3rd most volume, 2nd least dense - Made primarily of gas, but has more ice and organic gases in its atmosphere than Jupiter and Saturn. -Has an unusually large tilt. Earth’s tilt is approximately 23.5° from vertical, Uranus is approximately ...
... -4th most mass, 3rd most volume, 2nd least dense - Made primarily of gas, but has more ice and organic gases in its atmosphere than Jupiter and Saturn. -Has an unusually large tilt. Earth’s tilt is approximately 23.5° from vertical, Uranus is approximately ...
94263_Solar_Sys_Halfs
... 2. Pluto is not a planet, but Bode’s Law predicted the farthest planet to be at 78 AU (Pluto’s average orbital distance is 39.6 AU). Neptune and Pluto were not discovered in Bode’s lifetime. What do you think he would say about the real data? 3. In our solar system walking model, it took about 2 sec ...
... 2. Pluto is not a planet, but Bode’s Law predicted the farthest planet to be at 78 AU (Pluto’s average orbital distance is 39.6 AU). Neptune and Pluto were not discovered in Bode’s lifetime. What do you think he would say about the real data? 3. In our solar system walking model, it took about 2 sec ...
aaaa - Londonderry School District
... What is the most unique characteristic of the Earth? • The presence and diversity of life ...
... What is the most unique characteristic of the Earth? • The presence and diversity of life ...
Part 1- The Basics
... • Binary stars are two stars which are held in orbit around each other by their mutual gravitational attraction, are surprisingly common • Visual binaries: those that can be resolved into two distinct star images by a telescope • Each of the two stars in a binary system moves in an elliptical orbit ...
... • Binary stars are two stars which are held in orbit around each other by their mutual gravitational attraction, are surprisingly common • Visual binaries: those that can be resolved into two distinct star images by a telescope • Each of the two stars in a binary system moves in an elliptical orbit ...
3-planets-of-the-solar-system
... 27. Base your answer to the following question on the passage below. A Newly Discovered Planet Scientists studying a Sun-like star named Ogle-Tr-3 discovered a planet that is, on the average, 3.5 million kilometers away from the star’s surface. The planet was discovered as a result of observing a cy ...
... 27. Base your answer to the following question on the passage below. A Newly Discovered Planet Scientists studying a Sun-like star named Ogle-Tr-3 discovered a planet that is, on the average, 3.5 million kilometers away from the star’s surface. The planet was discovered as a result of observing a cy ...
Ay 1 – Final Exam
... 18. (2 points) Why is Earth's equilibrium temperature (i.e., the temperature given by setting the luminosity absorbed from the Sun equal to Earth's emitted luminosity) different than the actual average surface temperature we measure for the Earth? Explain the physical mechanism behind this. ...
... 18. (2 points) Why is Earth's equilibrium temperature (i.e., the temperature given by setting the luminosity absorbed from the Sun equal to Earth's emitted luminosity) different than the actual average surface temperature we measure for the Earth? Explain the physical mechanism behind this. ...
problems - Villanova University
... a) What would happen to the gravitational force between Earth and the Sun? b) What would be the orbital period of Earth? 86. Explain the internal structure of Earth; speculate what would happen if the core were much smaller. How would that impact its habitability? 87. What was Lamarck’s idea of evo ...
... a) What would happen to the gravitational force between Earth and the Sun? b) What would be the orbital period of Earth? 86. Explain the internal structure of Earth; speculate what would happen if the core were much smaller. How would that impact its habitability? 87. What was Lamarck’s idea of evo ...
December 2010 Clear Skies Newsletter PDF
... these seasons because the planet is tilted on its axis, so one hemisphere receives more energy from the Sun and experiences summer while the other receives less energy and is shrouded in winter. Saturn’s equinox, when the Sun was directly over the equator, occurred in August 2009. In the study, Satu ...
... these seasons because the planet is tilted on its axis, so one hemisphere receives more energy from the Sun and experiences summer while the other receives less energy and is shrouded in winter. Saturn’s equinox, when the Sun was directly over the equator, occurred in August 2009. In the study, Satu ...
ppt
... from falling in and a disk is formed Radiation from the protostar keeps the interior regions of the disk hotter than the outer regions In the interior only materials with a high melting point such as silicates and metals can condense to form solids At larger distances ices (both water and ammonia) c ...
... from falling in and a disk is formed Radiation from the protostar keeps the interior regions of the disk hotter than the outer regions In the interior only materials with a high melting point such as silicates and metals can condense to form solids At larger distances ices (both water and ammonia) c ...
Lesson 2 Power Notes Outline
... Energy is transferred from the sun’s core to the photosphere and escapes into space as visible light, other forms of radiation, heat, and wind. ...
... Energy is transferred from the sun’s core to the photosphere and escapes into space as visible light, other forms of radiation, heat, and wind. ...
ASTRONOMY 12 Problem Set 1 – Due Thursday, January 21, 2016
... 4) Consider an astronaut descending feet first into a ten solar mass (one solar mass is 1.99 × 1033 gm) black hole. Assume the astronaut is tall (she soon will be) and has a height of 200 cm and has a mass of 60 kg (6 × 104 gm). a) What would be the tidal force between the bottom of her feet and the ...
... 4) Consider an astronaut descending feet first into a ten solar mass (one solar mass is 1.99 × 1033 gm) black hole. Assume the astronaut is tall (she soon will be) and has a height of 200 cm and has a mass of 60 kg (6 × 104 gm). a) What would be the tidal force between the bottom of her feet and the ...
Space - Logan Petlak
... • Nebula – a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter. ...
... • Nebula – a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter. ...
Tessmann Show Descriptions
... Discover how astronomical observations of planets and stars have given us clues to their composition and environments. As we visit the planets of our solar system, the shows covers science curriculum, presenting topics such as the nature of gravity; how time is measured with the orbits of the planet ...
... Discover how astronomical observations of planets and stars have given us clues to their composition and environments. As we visit the planets of our solar system, the shows covers science curriculum, presenting topics such as the nature of gravity; how time is measured with the orbits of the planet ...
Winter Interim Assessment Review
... • Many places that are far from Earth’s equator and its poles have four distinct seasons; winter, spring, summer, and autumn. This is because of how sunlight strikes Earth’s surface. • Near the equator, sunlight hits the Earth’s surface from overhead. • Near the poles, sunlight arrives a steep angle ...
... • Many places that are far from Earth’s equator and its poles have four distinct seasons; winter, spring, summer, and autumn. This is because of how sunlight strikes Earth’s surface. • Near the equator, sunlight hits the Earth’s surface from overhead. • Near the poles, sunlight arrives a steep angle ...
Universe 8e Lecture Chapter 17 Nature of Stars
... observed as the Earth moves along its orbit. Parallax measurements made from orbit, above the blurring effects of the atmosphere, are much more accurate than those made with Earth-based telescopes. Stellar parallaxes can only be measured for stars within a few hundred parsecs. The Inverse-Square Law ...
... observed as the Earth moves along its orbit. Parallax measurements made from orbit, above the blurring effects of the atmosphere, are much more accurate than those made with Earth-based telescopes. Stellar parallaxes can only be measured for stars within a few hundred parsecs. The Inverse-Square Law ...
Dwarf Planets
... • The discovery of Eris forced astronomers to create a better definition of a planet (2006). – In orbit around the Sun – Sufficient mass to assume a nearly round shape – Cleared the neighborhood around its orbit ...
... • The discovery of Eris forced astronomers to create a better definition of a planet (2006). – In orbit around the Sun – Sufficient mass to assume a nearly round shape – Cleared the neighborhood around its orbit ...
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.