Photosynthetic Potential of Planets in 3:2 Spin Orbit
... atmospheric composition can sustain surface liquid water (Huang 1959, Dole 1964), has been an extremely useful conceptual tool in understanding under what conditions Earth-like planets may be potentially habitable. However, it is clear that there will be many planets that are not Earth-like in at le ...
... atmospheric composition can sustain surface liquid water (Huang 1959, Dole 1964), has been an extremely useful conceptual tool in understanding under what conditions Earth-like planets may be potentially habitable. However, it is clear that there will be many planets that are not Earth-like in at le ...
Downloaded - WordPress.com
... It is not large enough to sustain fusion reactions and is therefore not a star. If its physical characteristics are similar to those of the other known planets in our Solar System then it, too, should be considered a planet, as should all other similar objects. Naboo should not be considered a ...
... It is not large enough to sustain fusion reactions and is therefore not a star. If its physical characteristics are similar to those of the other known planets in our Solar System then it, too, should be considered a planet, as should all other similar objects. Naboo should not be considered a ...
Outline - Picnic Point High School
... The Universe began with a singularity in space-time. After the initial explosion, the Universe started to expand, cool and condense, forming matter. As part of this ongoing process the Sun and the Solar System were formed over 4x109 years ago from a gas cloud which resulted from a supernova explosio ...
... The Universe began with a singularity in space-time. After the initial explosion, the Universe started to expand, cool and condense, forming matter. As part of this ongoing process the Sun and the Solar System were formed over 4x109 years ago from a gas cloud which resulted from a supernova explosio ...
ET: Astronomy 230 Outline Important Caveat
... • Mostly oceans and some solid land (all volcanic). • Frequent impacts of remaining planetesimals (ending about 3.8 billion years ago). • Impacts would have sterilized the young Earth– Mass extinctions and maybe vaporized oceans (more comets?). • Impacts and volcanic activity created the continental ...
... • Mostly oceans and some solid land (all volcanic). • Frequent impacts of remaining planetesimals (ending about 3.8 billion years ago). • Impacts would have sterilized the young Earth– Mass extinctions and maybe vaporized oceans (more comets?). • Impacts and volcanic activity created the continental ...
Unit 1: Astronomy Project
... For the week of February 11-14th, you should describe in a literate, four-page essay what a year on your planet is like. What does your sun look like in your sky (its size, its color, its brightness)? How do you tell time (days, months, seasons, years, etc.)? How high can you jump? What do(es) your ...
... For the week of February 11-14th, you should describe in a literate, four-page essay what a year on your planet is like. What does your sun look like in your sky (its size, its color, its brightness)? How do you tell time (days, months, seasons, years, etc.)? How high can you jump? What do(es) your ...
Document
... Io and Europa are mostly rocky but Ganymede and Callisto have more ices; Densities: 3.6, 3.0, 1.9, 1.8 g/cc respectively. ...
... Io and Europa are mostly rocky but Ganymede and Callisto have more ices; Densities: 3.6, 3.0, 1.9, 1.8 g/cc respectively. ...
Our Universe SPA-4101
... of dense interstellar gas clouds. One of the closest star forming regions to the Sun is the Orion nebula – which glows because the hydrogen gas is heated by an embedded cluster of recen ...
... of dense interstellar gas clouds. One of the closest star forming regions to the Sun is the Orion nebula – which glows because the hydrogen gas is heated by an embedded cluster of recen ...
Document
... Io and Europa are mostly rocky but Ganymede and Callisto have more ices; Densities: 3.6, 3.0, 1.9, 1.8 g/cc respectively. ...
... Io and Europa are mostly rocky but Ganymede and Callisto have more ices; Densities: 3.6, 3.0, 1.9, 1.8 g/cc respectively. ...
Chap. 13 Gravitational Interactions
... tidal forces on the moon’s crust would be greater If the moon were too close, Earth’s tidal forces would tear the moon into a billion pieces, forming a ring around Earth similar to those around Saturn ...
... tidal forces on the moon’s crust would be greater If the moon were too close, Earth’s tidal forces would tear the moon into a billion pieces, forming a ring around Earth similar to those around Saturn ...
TE SC.4.E.5.4, 5.3, 5.2, 5.1
... 2. Why do stars appear to move across the night sky? Answer: The stars appear to move because of Earth’s rotation. Constellations or patterns of stars also change with the seasons because Earth is orbiting around the sun. 3. Why do constellations change with the seasons? Answer: The constellations h ...
... 2. Why do stars appear to move across the night sky? Answer: The stars appear to move because of Earth’s rotation. Constellations or patterns of stars also change with the seasons because Earth is orbiting around the sun. 3. Why do constellations change with the seasons? Answer: The constellations h ...
Chapter 4: Making Sense of the Universe
... Newton’s version of Kepler’s third law allows us to calculate the mass of Saturn from orbital characteristics of its moon Titan. A. Yes, but we can measure Saturn’s mass more precisely by measuring how long it takes to orbit the Sun. B. Yes, knowing Titan’s period and semi-major axis allows us to ca ...
... Newton’s version of Kepler’s third law allows us to calculate the mass of Saturn from orbital characteristics of its moon Titan. A. Yes, but we can measure Saturn’s mass more precisely by measuring how long it takes to orbit the Sun. B. Yes, knowing Titan’s period and semi-major axis allows us to ca ...
Setting the Stage for Habitable Planets
... still “planet-like”, even though they are not technically planets. Second, the word “habitable” can take on a number of meanings. As employed in the present review, habitability refers to the capability of starting life and sustaining it. A habitable planet could include an environment capable of su ...
... still “planet-like”, even though they are not technically planets. Second, the word “habitable” can take on a number of meanings. As employed in the present review, habitability refers to the capability of starting life and sustaining it. A habitable planet could include an environment capable of su ...
Looking for life in unlikely places: reasons why planets may not be
... a signal from a patch of living creatures viewed from the direction of the Sun, and this signal will stand out from the cold surroundings even more strongly than the optical signal. It is unlikely that any non-living backscatterer could mimic this infrared signal. Another way to distinguish living f ...
... a signal from a patch of living creatures viewed from the direction of the Sun, and this signal will stand out from the cold surroundings even more strongly than the optical signal. It is unlikely that any non-living backscatterer could mimic this infrared signal. Another way to distinguish living f ...
Astronomy Glossary Key
... Gravity is an attractive force produced bal all things with mass. The more massive an object is, the greater the force of gravity, the closer the object is the greater the force. In 1925 Hubble was first to notice that the light from hydrogen starlight was shifted towards the red end of the spectrum ...
... Gravity is an attractive force produced bal all things with mass. The more massive an object is, the greater the force of gravity, the closer the object is the greater the force. In 1925 Hubble was first to notice that the light from hydrogen starlight was shifted towards the red end of the spectrum ...
Syllabus
... different wavelengths of light are given different names and carry different amounts of energy. Some of these wavelengths do not go through Earth’s atmosphere Understand the way that light spreads out as it leaves a source. ATOMIC STRUCTURE AND SPECTRA Understand how energy levels in atoms allow us ...
... different wavelengths of light are given different names and carry different amounts of energy. Some of these wavelengths do not go through Earth’s atmosphere Understand the way that light spreads out as it leaves a source. ATOMIC STRUCTURE AND SPECTRA Understand how energy levels in atoms allow us ...
Chapter 1 Our Place in the Universe
... • How big is the universe? – The observable universe is 14 billion lightyears in radius and contains over 100 billion galaxies with a total number of stars comparable to the number of grains of sand on all of Earth’s beaches. • How do our lifetimes compare to the age of the universe? – On a cosmic c ...
... • How big is the universe? – The observable universe is 14 billion lightyears in radius and contains over 100 billion galaxies with a total number of stars comparable to the number of grains of sand on all of Earth’s beaches. • How do our lifetimes compare to the age of the universe? – On a cosmic c ...
doc
... S4E1. Students will compare and contrast the physical attributes of stars, star patterns, and planets. S4E2. Students will model the position and motion of the earth in the solar system and will explain the role of relative position and motion in determining sequence of the phases of the moon. Under ...
... S4E1. Students will compare and contrast the physical attributes of stars, star patterns, and planets. S4E2. Students will model the position and motion of the earth in the solar system and will explain the role of relative position and motion in determining sequence of the phases of the moon. Under ...
Lecture 09
... • A transit is when a planet crosses in front of a star. • The resulting eclipse reduces the star’s apparent brightness and tells us the planet’s radius. • The duration of the dip tells us the radius of the star. • The duration of the downward\upward slopes tell us the radius of the planet. • The pl ...
... • A transit is when a planet crosses in front of a star. • The resulting eclipse reduces the star’s apparent brightness and tells us the planet’s radius. • The duration of the dip tells us the radius of the star. • The duration of the downward\upward slopes tell us the radius of the planet. • The pl ...
1-structure-of-the-universe-and-the-big-bang
... evidence for the origin of A) the universe B) our solar system C) Earth’s ozone layer D) Earth’s earliest atmosphere 11. Compared to light from from a stationary source at the same point, light from an object moving toward you is A) brighter B) bluer C) redder D) unchanged in both color and brightne ...
... evidence for the origin of A) the universe B) our solar system C) Earth’s ozone layer D) Earth’s earliest atmosphere 11. Compared to light from from a stationary source at the same point, light from an object moving toward you is A) brighter B) bluer C) redder D) unchanged in both color and brightne ...
astronomy 161 - Ohio State Astronomy
... Constellations are largely arbitrary Other cultures, other constellations: Example: Ursa Major = bear, dipper, bull's leg, grain scoop, wagon, plow, etc. Stars in a constellation usually are not at the same distance from us. At a different place in our Galaxy, we would see different star patterns. ...
... Constellations are largely arbitrary Other cultures, other constellations: Example: Ursa Major = bear, dipper, bull's leg, grain scoop, wagon, plow, etc. Stars in a constellation usually are not at the same distance from us. At a different place in our Galaxy, we would see different star patterns. ...
The Universe Fine-Tuned for Life
... sunlight can penetrate; these organisms get energy from sulfur compounds emitted from hydrothermal vents. However, scientists conjecture that they feed on the carcasses of great whales on ocean floors (which indirectly depend on photosynthesis for life) while migrating along the sea floor from one t ...
... sunlight can penetrate; these organisms get energy from sulfur compounds emitted from hydrothermal vents. However, scientists conjecture that they feed on the carcasses of great whales on ocean floors (which indirectly depend on photosynthesis for life) while migrating along the sea floor from one t ...
student instruction and answer sheet
... temperature for liquid water to exist (i.e. in the habitable zone). Recent discoveries suggest that we should also consider including moons around gas giant planets that are orbiting their central star in the habitable zone. A reasonable estimate for this number is difficult to imagine. In our solar ...
... temperature for liquid water to exist (i.e. in the habitable zone). Recent discoveries suggest that we should also consider including moons around gas giant planets that are orbiting their central star in the habitable zone. A reasonable estimate for this number is difficult to imagine. In our solar ...
PPT
... Constellations are largely arbitrary Other cultures, other constellations: Example: Ursa Major = bear, dipper, bull's leg, grain scoop, wagon, plow, etc. Stars in a constellation usually are not at the same distance from us. At a different place in our Galaxy, we would see different star patterns. ...
... Constellations are largely arbitrary Other cultures, other constellations: Example: Ursa Major = bear, dipper, bull's leg, grain scoop, wagon, plow, etc. Stars in a constellation usually are not at the same distance from us. At a different place in our Galaxy, we would see different star patterns. ...
BBC Stargazing Live Star and Moon Guide
... the year in Virgo and ends it in Libra. Flip to our Star Guide to find these constellations. sing binoculars, can you spot the Galilean 1 U moons around Jupiter? Take a look two hours later – you may see that they have moved slightly as they progress around their orbit. This is what prompted Galil ...
... the year in Virgo and ends it in Libra. Flip to our Star Guide to find these constellations. sing binoculars, can you spot the Galilean 1 U moons around Jupiter? Take a look two hours later – you may see that they have moved slightly as they progress around their orbit. This is what prompted Galil ...
Astrobiology
Astrobiology is the study of the origin, evolution, distribution, and future of life in the universe: extraterrestrial life and life on Earth. This interdisciplinary field encompasses the search for habitable environments in our Solar System and habitable planets outside our Solar System, the search for evidence of prebiotic chemistry, laboratory and field research into the origins and early evolution of life on Earth, and studies of the potential for life to adapt to challenges on Earth and in outer space. Astrobiology addresses the question of whether life exists beyond Earth, and how humans can detect it if it does. (The term exobiology is similar but more specific—it covers the search for life beyond Earth, and the effects of extraterrestrial environments on living things.)Astrobiology makes use of physics, chemistry, astronomy, biology, molecular biology, ecology, planetary science, geography, and geology to investigate the possibility of life on other worlds and help recognize biospheres that might be different from the biosphere on Earth. The origin and early evolution of life is an inseparable part of the discipline of astrobiology. Astrobiology concerns itself with interpretation of existing scientific data; given more detailed and reliable data from other parts of the universe, the roots of astrobiology itself—physics, chemistry and biology—may have their theoretical bases challenged. Although speculation is entertained to give context, astrobiology concerns itself primarily with hypotheses that fit firmly into existing scientific theories.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. According to research published in August 2015, very large galaxies may be more favorable to the creation and development of habitable planets than smaller galaxies, like the Milky Way galaxy. 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.Current studies on the planet Mars by the Curiosity and Opportunity rovers are now searching for evidence of ancient life as well as plains related to ancient rivers or lakes that may have been habitable. The search for evidence of habitability, taphonomy (related to fossils), and organic molecules on the planet Mars is now a primary NASA objective on Mars.