T 4
... • The outer edge of the HZ is the distance from the Sun at which even a strong greenhouse effect would not allow liquid water on the planetary surface. • Carbonate-silicate cycle can help to extend the outer edge of the HZ by accumulating more CO2 and partially offsetting low solar luminosity. ...
... • The outer edge of the HZ is the distance from the Sun at which even a strong greenhouse effect would not allow liquid water on the planetary surface. • Carbonate-silicate cycle can help to extend the outer edge of the HZ by accumulating more CO2 and partially offsetting low solar luminosity. ...
Quantum Well Electron Gain Structures and Infrared Detector Arrays
... 700 K (day) = 800 F 100 K (night) = -280 F • what little atmosphere there is comes from solar wind particles (Hydrogen and Helium) ...
... 700 K (day) = 800 F 100 K (night) = -280 F • what little atmosphere there is comes from solar wind particles (Hydrogen and Helium) ...
The Scale of the Cosmos
... • The robotic spacecraft Viking 1 and Viking 2 landed on Mars in 1976 and tested soil samples for living organisms. • Some of the tests had puzzling semi-positive results that scientists hypothesize were caused by non-biological chemical reactions in the soil. • The Martian rovers such as Opportunit ...
... • The robotic spacecraft Viking 1 and Viking 2 landed on Mars in 1976 and tested soil samples for living organisms. • Some of the tests had puzzling semi-positive results that scientists hypothesize were caused by non-biological chemical reactions in the soil. • The Martian rovers such as Opportunit ...
Lecture 12-13: Planetary atmospheres
... o Trace elements also present in CO2, CH4, N2, H2O, NH3. o If planet’s gravity not strong enough or surface temperature is too large, these elements escape, leaving planet without an atmosphere. o Solar wind can also drag material from the atmosphere. o Relevant for planets without significant m ...
... o Trace elements also present in CO2, CH4, N2, H2O, NH3. o If planet’s gravity not strong enough or surface temperature is too large, these elements escape, leaving planet without an atmosphere. o Solar wind can also drag material from the atmosphere. o Relevant for planets without significant m ...
Lec21_2D
... Mercury and Titan are both low-mass bodies. But … Mercury is close to the Sun, so it is hot. Its gravity is not strong enough to keep its gases from escaping into space. Titan is in the outer solar system and is cold. The molecules are moving slowly, so the moon can hang onto its atmosphere (exc ...
... Mercury and Titan are both low-mass bodies. But … Mercury is close to the Sun, so it is hot. Its gravity is not strong enough to keep its gases from escaping into space. Titan is in the outer solar system and is cold. The molecules are moving slowly, so the moon can hang onto its atmosphere (exc ...
slides - Insight Cruises
... • How much should we devote to this search?? • Fundamentally, the answer depends on society’s and individual people’s balance between looking inward and looking outward ...
... • How much should we devote to this search?? • Fundamentally, the answer depends on society’s and individual people’s balance between looking inward and looking outward ...
Life on Our Evolving Planet
... including the greatest story rarely told: the five billion years of physical, chemical, and biological evolution of the Earth and its biosphere. Students and faculty are welcome to help. 21. My website has three sections for natural science (mostly cal poly student projects involving math models), n ...
... including the greatest story rarely told: the five billion years of physical, chemical, and biological evolution of the Earth and its biosphere. Students and faculty are welcome to help. 21. My website has three sections for natural science (mostly cal poly student projects involving math models), n ...
Observing Titan with amateur equipment
... known as the ‘61-inch’) was erected by the discoverer of Titan’s atmosphere primarily to perform a survey of the lunar surface in preparation for the Apollo landings. These days it is relatively undersubscribed, and thus not difficult to obtain time for modest projects such as Titan photometry. Acce ...
... known as the ‘61-inch’) was erected by the discoverer of Titan’s atmosphere primarily to perform a survey of the lunar surface in preparation for the Apollo landings. These days it is relatively undersubscribed, and thus not difficult to obtain time for modest projects such as Titan photometry. Acce ...
Titan`s Methane Weather
... by solar ultraviolet light, which kicks off a complicated network of photochemical reactions. These reactions destroy methane and form heavier hydrocarbons such as ethane (C2H6), propane (C3H8), and benzene (C6H6). Larger hydrocarbon molecules are also created, forming a thick photochemical haze lay ...
... by solar ultraviolet light, which kicks off a complicated network of photochemical reactions. These reactions destroy methane and form heavier hydrocarbons such as ethane (C2H6), propane (C3H8), and benzene (C6H6). Larger hydrocarbon molecules are also created, forming a thick photochemical haze lay ...
LRR Slides
... • Having a better understanding of the composition of our atmosphere provides great opportunities for scientists (such as meteorologists) to conduct atmospheric research • NASA may also be interested in this project, as a similar probe could be launched to extraterrestrial planets to conduct researc ...
... • Having a better understanding of the composition of our atmosphere provides great opportunities for scientists (such as meteorologists) to conduct atmospheric research • NASA may also be interested in this project, as a similar probe could be launched to extraterrestrial planets to conduct researc ...
File - Starry Starry Night!
... as a result experienced very little tidal warming that might blur or erase earlier features. However, the Hyperion craters are particularly deep. The result is a curiously punched-in look, somewhat like the surface of a sponge or a wasp nest. Many of the crater walls on Hyperion are bright, which su ...
... as a result experienced very little tidal warming that might blur or erase earlier features. However, the Hyperion craters are particularly deep. The result is a curiously punched-in look, somewhat like the surface of a sponge or a wasp nest. Many of the crater walls on Hyperion are bright, which su ...
PHYS 390 Lecture 9 - Planetary atmospheres 9
... • probably once contained a large amount of H2O, which was driven out by high temperatures; atmospheric deuterium:hydrogen ratio is 0.016, compared to 0.00016 on Earth, suggesting evaporation from upper atmosphere • surface is highly volcanic, extensive lava flows in last 500 million years Earth: • ...
... • probably once contained a large amount of H2O, which was driven out by high temperatures; atmospheric deuterium:hydrogen ratio is 0.016, compared to 0.00016 on Earth, suggesting evaporation from upper atmosphere • surface is highly volcanic, extensive lava flows in last 500 million years Earth: • ...
Atmospheres in the Solar System • The speed at which molecules
... What’s going on? • We don’t know • Maybe the atmosphere of Mars was “sandblasted” by the intense solar wind early in the history of the solar system (estimates that power in early solar wind 35X that at present) • Maybe Titan has a huge, subsurface reservoir of frozen atmosphere that replaces that ...
... What’s going on? • We don’t know • Maybe the atmosphere of Mars was “sandblasted” by the intense solar wind early in the history of the solar system (estimates that power in early solar wind 35X that at present) • Maybe Titan has a huge, subsurface reservoir of frozen atmosphere that replaces that ...
The atmospheres of different planets
... 50 km. The ozone layer is able to absorb large amounts of solar ultra violet radiation. Therefore we have a temperature inversion in the stratosphere. • Above the stratosphere we can find the mesosphere. Due to radiative cooling the temperatures decreases with increasing altitude to its lowest point ...
... 50 km. The ozone layer is able to absorb large amounts of solar ultra violet radiation. Therefore we have a temperature inversion in the stratosphere. • Above the stratosphere we can find the mesosphere. Due to radiative cooling the temperatures decreases with increasing altitude to its lowest point ...
Homes for life
... The habitable zone is the region around a star in which an Earth-like planet could have liquid water. The surface temperature of a planet is governed by the incident stellar radiation, its albedo and the greenhouse effect of the atmosphere. The concept of the habitable zone is problematic because th ...
... The habitable zone is the region around a star in which an Earth-like planet could have liquid water. The surface temperature of a planet is governed by the incident stellar radiation, its albedo and the greenhouse effect of the atmosphere. The concept of the habitable zone is problematic because th ...
is there life out there? - Bentonville Public Library
... • For life to exist, we think that you need liquid water, organic molecules, an energy source, a catalytic surface to kick start a biological process and time • Therefore, other life in the Universe will, in all probability, be based on the same processes ...
... • For life to exist, we think that you need liquid water, organic molecules, an energy source, a catalytic surface to kick start a biological process and time • Therefore, other life in the Universe will, in all probability, be based on the same processes ...
Looking for Signs of Life Answer Key
... sample of just the star, not the star plus one or more planets). 14. What combination of substances in a planet's atmosphere would suggest that the planet might be suitable for life? Choose all that apply. ozone oxygen carbon dioxide methane nitrogen sulfur compounds nitrogen compounds water 15. Exp ...
... sample of just the star, not the star plus one or more planets). 14. What combination of substances in a planet's atmosphere would suggest that the planet might be suitable for life? Choose all that apply. ozone oxygen carbon dioxide methane nitrogen sulfur compounds nitrogen compounds water 15. Exp ...
HotJup
... The ClC(O)OO, the key to Venus chemistry, identified. Improved chemistry can explain the low O2 of Venus Yung and DeMore (1982) vindicated Can study other reactions involving ClC(O)OO Can look for ClC(O)OO on Venus Venus, the ultimate fate of all terrestrial planets ala Ingersoll 1969 --- testable h ...
... The ClC(O)OO, the key to Venus chemistry, identified. Improved chemistry can explain the low O2 of Venus Yung and DeMore (1982) vindicated Can study other reactions involving ClC(O)OO Can look for ClC(O)OO on Venus Venus, the ultimate fate of all terrestrial planets ala Ingersoll 1969 --- testable h ...
Clear Skies - Cowichan Valley Starfinders Society
... edges of these bright regions hot gas spurts out at high speeds. Magnetic fields connect the regions together, even when they are widely separated. For example, in the Hinode images that Harra will present on Wednesday, magnetic fields linked two regions almost 500,000 kilometers apart — a distance ...
... edges of these bright regions hot gas spurts out at high speeds. Magnetic fields connect the regions together, even when they are widely separated. For example, in the Hinode images that Harra will present on Wednesday, magnetic fields linked two regions almost 500,000 kilometers apart — a distance ...
Midterm 2 - SwRI Boulder
... 14) What are three properties of water that make it a good candidate for the solvent of life? Large range in which water is liquid (high boiling point, low freezing point) It is a polar molecule and it can make hydrogen bonds Solid water floats on top of liquid water 15) The view of most scientists ...
... 14) What are three properties of water that make it a good candidate for the solvent of life? Large range in which water is liquid (high boiling point, low freezing point) It is a polar molecule and it can make hydrogen bonds Solid water floats on top of liquid water 15) The view of most scientists ...
History of the Earth Ch 1
... _____________________ caused the cloud to _________________________ Most of the clouds material was at its _______________ __________________________________________________________________ ______________was so great _________________________ began (star began to shine) _____________________________ ...
... _____________________ caused the cloud to _________________________ Most of the clouds material was at its _______________ __________________________________________________________________ ______________was so great _________________________ began (star began to shine) _____________________________ ...
Our Habitable Earth
... water. The planet itself is neither too big nor too small for the proper surface, gravity and atmosphere. It's just right. Just like Earth? We’ll see what future study of this finding brings us… ...
... water. The planet itself is neither too big nor too small for the proper surface, gravity and atmosphere. It's just right. Just like Earth? We’ll see what future study of this finding brings us… ...
Space Review Packet
... i. The environmental conditions of space provide significant threats to the health and wellbeing of exposed organisms. k. How the light-year is used in measurement of space-time. l. Humans and Earth are a small piece of an enormous and diverse cosmic system. No one knows if the universe is infinitel ...
... i. The environmental conditions of space provide significant threats to the health and wellbeing of exposed organisms. k. How the light-year is used in measurement of space-time. l. Humans and Earth are a small piece of an enormous and diverse cosmic system. No one knows if the universe is infinitel ...
The Imprecise Search for Habitability
... gaseous carbon dioxide reacts with silicate rocks and water to form calcium carbonate, which is then subducted into the Earth’s mantle. This part of the cycle acts as a sink of carbon. Carbon dioxide is released back into the atmosphere via outgassing and volcanic activity. The inorganic carbon cycl ...
... gaseous carbon dioxide reacts with silicate rocks and water to form calcium carbonate, which is then subducted into the Earth’s mantle. This part of the cycle acts as a sink of carbon. Carbon dioxide is released back into the atmosphere via outgassing and volcanic activity. The inorganic carbon cycl ...
Life on Titan
Whether there is life on Titan, the largest moon of Saturn, is at present an open question and a topic of scientific assessment and research. Titan is far colder than Earth, and its surface lacks stable liquid water; factors which have led some scientists to consider life there unlikely. On the other hand, its thick atmosphere is chemically active and rich in carbon compounds. On the surface there are bodies of liquid methane and ethane; some scientists speculate that these liquids might take the place of water in living cells different from those on Earth.In June 2010, scientists analysing data from the Cassini–Huygens mission reported anomalies in the atmosphere near the surface which could be consistent with the presence of methane-producing organisms, but may alternatively be due to non-living chemical or meteorological processes. The Cassini–Huygens mission was not equipped to look directly for micro-organisms or to provide a thorough inventory of complex organic compounds.A hypothetical cell membrane capable of functioning in liquid methane has been modeled.