power_point_slides
... Do we need gas giants like Jupiter and Saturn to shield the Earth from asteroid and comet bombardment? Does Earth need a large moon to stabilize its rotational axis? Because the sun’s brightness increased by 25% over its lifetime, is the “habitable zone” for liquid water very tightly constrained? ...
... Do we need gas giants like Jupiter and Saturn to shield the Earth from asteroid and comet bombardment? Does Earth need a large moon to stabilize its rotational axis? Because the sun’s brightness increased by 25% over its lifetime, is the “habitable zone” for liquid water very tightly constrained? ...
Final Lecture Notes from 2002
... The essential features of all living systems are discussed as they relate to what we might expect in terms of life elsewhere in the ...
... The essential features of all living systems are discussed as they relate to what we might expect in terms of life elsewhere in the ...
Early history of astronomy
... • The motion of a body, such as a planet or moon, along a path around some point in space • Earth's orbit is elliptical • Earth is closest to the Sun (perihelion) in January • Earth is farthest from the Sun (aphelion) in July • The plane of the ecliptic is an imaginary plane that connects Earth's or ...
... • The motion of a body, such as a planet or moon, along a path around some point in space • Earth's orbit is elliptical • Earth is closest to the Sun (perihelion) in January • Earth is farthest from the Sun (aphelion) in July • The plane of the ecliptic is an imaginary plane that connects Earth's or ...
Can you write numbers in scientific notation
... This “review sheet” has a list of questions that you can ask yourself to get a feel for your own comfort level on the different topics that we’ve covered in class. As with the second exam, you should be comfortable with reading/writing numbers in scientific notation & using your own scientific calcu ...
... This “review sheet” has a list of questions that you can ask yourself to get a feel for your own comfort level on the different topics that we’ve covered in class. As with the second exam, you should be comfortable with reading/writing numbers in scientific notation & using your own scientific calcu ...
Kylie and Cody
... the sun, revolved around the Earth. Astronomers once thought that planetary orbits were circular and that the sun was in the center. Kepler showed that the orbits are elliptical. The sun is not at the center but slightly to one side. ...
... the sun, revolved around the Earth. Astronomers once thought that planetary orbits were circular and that the sun was in the center. Kepler showed that the orbits are elliptical. The sun is not at the center but slightly to one side. ...
Asteroids
... solar eclipse will occur, although it will only be visible to eclipse chasers and those who live in a thin swath of Australia. For a few minutes, those near the center of the eclipse path will see the entire Sun blocked by the Moon, causing the day to become unusually dark. Just before -- and just a ...
... solar eclipse will occur, although it will only be visible to eclipse chasers and those who live in a thin swath of Australia. For a few minutes, those near the center of the eclipse path will see the entire Sun blocked by the Moon, causing the day to become unusually dark. Just before -- and just a ...
The Solar System
... (8) Earth and Space. The student knows there are recognizable patterns in the natural world and among objects in the sky. The student is expected to : (B) describe and illustrate the Sun as a star composed of gasses that provides light and heat energy for the water ...
... (8) Earth and Space. The student knows there are recognizable patterns in the natural world and among objects in the sky. The student is expected to : (B) describe and illustrate the Sun as a star composed of gasses that provides light and heat energy for the water ...
37) What is the largest planet in the solar system?
... A) Estimate how many possible planets in our solar system may have life B) Estimate how many possible intelligent, communicating civilizations there are in our galaxy. C) Estimate how many possible intelligent, communicating civilizations there are in our universe D) Estimate how many possible organ ...
... A) Estimate how many possible planets in our solar system may have life B) Estimate how many possible intelligent, communicating civilizations there are in our galaxy. C) Estimate how many possible intelligent, communicating civilizations there are in our universe D) Estimate how many possible organ ...
What is a Solar System?
... All planets orbit the sun in almost-circular elliptical orbits on approximately the same plane (the ecliptic). Dwarf Planets, comets, asteroids, and meteoroids also orbit the sun Most Satellites/Moons orbit planets (some orbit dwarf planets or even asteroids) Almost all planets, dwarf planets, and m ...
... All planets orbit the sun in almost-circular elliptical orbits on approximately the same plane (the ecliptic). Dwarf Planets, comets, asteroids, and meteoroids also orbit the sun Most Satellites/Moons orbit planets (some orbit dwarf planets or even asteroids) Almost all planets, dwarf planets, and m ...
Formation of a Solar System Notes Integrated Science 2 Name: Pd: I
... IV. Formation of Moons and Rings Planets have moons for 2 different reasons A. A large object in space _______________________________, throwing out debris that collects into a __________________ (Ex: Earth’s moon) B. _____________________ have been captured by the planet when they came too close, g ...
... IV. Formation of Moons and Rings Planets have moons for 2 different reasons A. A large object in space _______________________________, throwing out debris that collects into a __________________ (Ex: Earth’s moon) B. _____________________ have been captured by the planet when they came too close, g ...
Physics 2028: Great Ideas in Science: The Exobiology
... 2. Life is matter that can reproduce itself and evolve as survival dictates. 3. Life on Earth is carbon-based. Carbon can easily form long molecule chains. 4. Most life on Earth is composed of cells (viruses are not), which have proteins as their building blocks. Proteins have amino acids as their b ...
... 2. Life is matter that can reproduce itself and evolve as survival dictates. 3. Life on Earth is carbon-based. Carbon can easily form long molecule chains. 4. Most life on Earth is composed of cells (viruses are not), which have proteins as their building blocks. Proteins have amino acids as their b ...
Is there anybody out there?
... N* = stars in the Milky Way galaxy --> 200 to 300 million fp = fraction of stars with planets --> 5-6% fpm = fraction of metal-rich planets --> less than 1% ne = planets in a stars habitable zone --> 1 ng = stars in a galactic habitable zone fi = fraction of habitable planets where life does arise ...
... N* = stars in the Milky Way galaxy --> 200 to 300 million fp = fraction of stars with planets --> 5-6% fpm = fraction of metal-rich planets --> less than 1% ne = planets in a stars habitable zone --> 1 ng = stars in a galactic habitable zone fi = fraction of habitable planets where life does arise ...
An earthllke planet would have a rocky mantle surround
... on the Limits of Organic Life in Planetary ...
... on the Limits of Organic Life in Planetary ...
The Solar System
... Weathering - the breaking down of rocks into smaller pieces; mostly caused by movements of water, wind, and ice Erosion – the process in which sediment is picked up and moved from one place to another ...
... Weathering - the breaking down of rocks into smaller pieces; mostly caused by movements of water, wind, and ice Erosion – the process in which sediment is picked up and moved from one place to another ...
The Inner Planets
... They are named after the horses that pulled Mars’s chariot. The larger Deimos is only 23-km in diameter. Both appear to be captured asteroids. Phobos ...
... They are named after the horses that pulled Mars’s chariot. The larger Deimos is only 23-km in diameter. Both appear to be captured asteroids. Phobos ...
Volcanoes and Igneous Activity Earth
... frozen carbon dioxide ▪ Extensive dust storms with winds up to 270 kilometers (170 miles) per hour ...
... frozen carbon dioxide ▪ Extensive dust storms with winds up to 270 kilometers (170 miles) per hour ...
16-6 How do astronomers measure distance?
... ____________________ 2. One light-year is equal to a distance of about 10 trillion kilometers. ____________________ 3. An astronomical unit is equal to the distance between Earth and the Moon. ____________________ 4. Proxima Centauri is the closest star to Earth other than the Sun. _________________ ...
... ____________________ 2. One light-year is equal to a distance of about 10 trillion kilometers. ____________________ 3. An astronomical unit is equal to the distance between Earth and the Moon. ____________________ 4. Proxima Centauri is the closest star to Earth other than the Sun. _________________ ...
7La – Observing the sky/A place near the Sun
... Jupiter, Saturn, Uranus and Neptune. The outer planets are all mostly gas. ...
... Jupiter, Saturn, Uranus and Neptune. The outer planets are all mostly gas. ...
Formation of Planets III
... solar system and also cause the spin of the sun to slow down. We can now look at a list of the elements in the original nebular cloud and see how they relate to Earth. The first is _____________. Most hydrogen was either as a gas or liquid in the region of the inner planets, so for the most part it ...
... solar system and also cause the spin of the sun to slow down. We can now look at a list of the elements in the original nebular cloud and see how they relate to Earth. The first is _____________. Most hydrogen was either as a gas or liquid in the region of the inner planets, so for the most part it ...
Everyday a new Christmas
... The evidence is mounting. In many such planets, evolution must be an event waiting to happen, or, most likely, is already happening. Although the probability of that first self replicating molecule is incredibly small, given the enormity of a planet and the vast number of possible initial evolutiona ...
... The evidence is mounting. In many such planets, evolution must be an event waiting to happen, or, most likely, is already happening. Although the probability of that first self replicating molecule is incredibly small, given the enormity of a planet and the vast number of possible initial evolutiona ...
DOC
... When our part of the Earth moves around so it is lit by the sun. The path an object takes around another object in space. A shape like a ball. A system of planets which revolve around a star (or sun) Dr. Iffat Sardharwalla ...
... When our part of the Earth moves around so it is lit by the sun. The path an object takes around another object in space. A shape like a ball. A system of planets which revolve around a star (or sun) Dr. Iffat Sardharwalla ...
Solutions to test #1 taken on Monday
... f) ___T____ Six Apollo missions landed on the Moon. g) ___T____ The seasons on Earth are caused by Earth’s tilt relative to its orbit. h) ___F____ The star Polaris (also called the North Star) rises in the East and sets in the West as viewed from Redlands. i) ____F___ Volcanism is an exogenic surfac ...
... f) ___T____ Six Apollo missions landed on the Moon. g) ___T____ The seasons on Earth are caused by Earth’s tilt relative to its orbit. h) ___F____ The star Polaris (also called the North Star) rises in the East and sets in the West as viewed from Redlands. i) ____F___ Volcanism is an exogenic surfac ...
Scale Model of the Solar System
... 1:1,000,000,000. This sounds difficult to do but actually it’s very easy because at this scale 1mm = 1,000 kilometres. Good approximations of the sizes of the planets are shown in the table below. Object Sun Mercury Venus Earth Mars Asteroid belt Jupiter Saturn Uranus Neptune Pluto Proxima Centauri ...
... 1:1,000,000,000. This sounds difficult to do but actually it’s very easy because at this scale 1mm = 1,000 kilometres. Good approximations of the sizes of the planets are shown in the table below. Object Sun Mercury Venus Earth Mars Asteroid belt Jupiter Saturn Uranus Neptune Pluto Proxima Centauri ...
New Scientist Magazine - Surrey, England… 19th November 2008
... It sounds like a simple enough wish list, but finding a planet that fulfils all of these criteria has kept astronomers busy for decades. Until recently, it meant finding a planet in the "Goldilocks zone" - orbiting its star at just the right distance to keep surface water liquid rather than being bo ...
... It sounds like a simple enough wish list, but finding a planet that fulfils all of these criteria has kept astronomers busy for decades. Until recently, it meant finding a planet in the "Goldilocks zone" - orbiting its star at just the right distance to keep surface water liquid rather than being bo ...
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.