Does anyone know how far the Exosphere is from earth or where i can find that?
597828
The exosphere is the highest layer of the atmosphere.  10,000 km above the Earth's surface.\nexosphere + ionosphere = thermosphere. \nThis is the upper limit of our atmosphere. \nextremely thin air. \nAir atoms and molecules are constantly escaping to space from the exosphere. \nprime components: hydrogen and helium at xtremely low densities\nEX is the area where many satellites orbit the Earth.
956514
Hi. I read your other answer. See below. The atmosphere is almost 93,000 000 miles away, so don't worry. Earth is more that just wonderful. It is exceedingly rare in my opinion. Together with the Moon, her oceans, her temperature, her atmospheric environment - all these make for an unusual combination of life supporting qualities. We should cherish this home we have.\n----------------------\n"This is wonderfull idea! Just imagine if could expand the size of our tiny little planet.\n\nOn the downside though, it is believed that the dimensions of earth is perfect for the exixtence of life on it. if we made her any bigger, our atmosphere would be too close to the sun, and earth would fry like a tomato.\n\nJust my opinion."
1061210
If you're not taking earth rotation into account, the value of GMe is 9.8 * (6.38E6)^2, so the square of the radius required is that value divided by .660, the root of which is 2.4584521E7.  Subtracting the earth radius from that gives\n\n1.8204521E7, or about 18 million km.\n\nIf you're considering a point that stays directly above the earth as it rotates, the nswer depends on the latitude and is the solution of a cubic equation.   I'm not going there for you!
586533
The defining line between our sky and outer space has been generally accepted to be around 50 miles above the earth. It was established during the first test flights in the 1940s by Chuck Yeager and Scott Crossfield, among others.
154104
Maximum Distance from Earth:\n1,658,854,980 km\n\nMinimum Distance from Earth:\n1,195,772,020 km\n\nCheck source: http://www.absoluteastronomy.com/planets/saturn.htm\n\n---------------------------------------------------\nAnother Answer:\nSaturn is 8.833 A.U. away from Earth. To get that distance in kilometers, multiply the A.U. distance by 149,600,000. To get that distance in miles, multiply the A.U. distance by 93,000,000. So Saturn is 1,321,416,800 kilometers from Earth (8.833x149,600,000) and 821,190,000 miles from Earth today (8.833x93,000,000).\n\nSource: http://www.windows.ucar.edu/cgi-bin/tour_def/kids_space/distance.html
1098746
hold on here, this isnt a short answer - \n    the Earth is on average 92Million miles from the sun, times pi for the circumforance and its roughly 290Million miles around.  divided by 365 for the number of days, the earth travels some 790,000 miles on one day, ya thats high on the odometer.  distance in one day divided by 24 hours comes to 33,000 MPH, now i did this on my computer but it does seem right, \n\nNow part 2, hang on here, big numbers ahead, the Solar System wihich Earth belongs to is roughly 26,000 Lightyears from the galactic core, (which has a Supermassive Black hole as heavy as 6 Trillion suns).  it take a quarter of a Billion years (250,000,000) for our solor system to complete one revolution around the galaxy. The circumferance could be some 80,000 Lightyears,  though i am not sure how to calculate the speed of the solar system.
954912
It averages between 91 and 94 million miles. You can check this by multiplying the speed of light (186,000 miles per second) by the time it takes light to reach the Earth (8 min, 16 sec.)\n\n30 NOV 06, 1711 hrs, GMT.
513176
Try http://googleearth.com\nMaster.
652676
a. emission lines from reference elemnts on Earth
45815
Mean Distance of Moon from Earth - 238,712 mi (384,400 km)\nGreatest Distance of Moon from Earth (Apogee) - 252,586 mi (406,740 km) \nShortest Distance of Moon from Earth (Perigee) - 221,331 mi (356,410 km)
501997
u know wot!space doesnt even have enough air to carry sound waves !so lifeforms we know have no damn way sustaining their life in space!\n\nbut , there is oxygen in space, however, the majority of it has already \nbeen captured gravitationally by stars, planets, or other celestial bodies.  \nSo space is almost a perfect vacuum, but gas and dust particles do float \naround out there.  These particles are referred to as the interstellar \nmedium by astronomers.  \n\nAccording to Thomas Arny's "Explorations: An Introduction to Astronomy," if \nwe were to compare the amount of gas in interstellar space to the air we \nbreathe, it would be like "one marble in a box 5 miles on a side compared \nto the same box filled completely with marbles."  So needless to say, there \nisn't very much oxygen in outer space, but there is some.  And the reason \nthere isn't more is simply that the gravity of all the other various \ncelestial objects out there, including galaxies, has captured most of the \ngas and dust.\n\n\nbut universe is so large , who knows there could be other places where air could be found even then i seriously doubt the presence of enough oxygen\n\n\nAstronomers have detected the first presence of oxygen and carbon in the atmosphere of an extrasolar planet, a world already known to be venting massive amounts of gas into space. \n\nThe find is evidence of an atmospheric "blow off" in action, where energetic hydrogen gas drags heavier elements along for a supersonic ride into space.\n\n\n\nDespite the oxygen, the faraway planet is not one that would support life.\n\n\nThe Jupiter-like planet is officially called HD 209458b, tcalled  Osiris after an Egyptian god who was dismembered by his brother Seth. It orbits a Sun-like star 150 light-years from Earth. \n\nAstronomers already knew the planet was rapidly losing its atmosphere after they  found it spewing out enough hydrogen gas to create an envelope that extended and trailed the extrasolar world. \n\nThe planet was thought to be losing at least 10,000 tons of material each second, but researchers weren't sure the process was powerful enough to dredge up heavier elements.\n\nCarbon and oxygen atoms are 10 times heavier than those of hydrogen, and therefore would normally lie low in a planet's atmosphere. So a force stronger than gravity is driving them up along with the hydrogen gas into the extended envelope around this planet\n\n\nThe venting process has been attributed to a pair of reasons, namely the intense gravitational forces between the planet and its parent star, as well as the super-hot temperature of the planet's atmosphere. HD 209458b circles its stellar parent every 3.5 days from a distance of just 4.4 million miles (7 million kilometers), which is closer than Mercury's orbit around the Sun.\n\nThe tight orbit causes intense gravitational tiding that stretches the planet's atmosphere into an oval shape, not unlike a rugby ball, which can allow gas to escape. The upper atmosphere itself is baked up to 18,000 degrees Fahrenheit (10,000 degrees Celsius), which forces hydrogen atoms to expand outward at supersonic speeds. \n\nThe hydrogen wind erupts away from the planet like a geyser and is powerful enough to sweep up carbon and oxygen with it. \n\nThe planet may eventually shed its entire atmosphere, leaving behind only a solid core remnant of its once massive self.  \nThe process is similar to one that may have eventually produced the atmospheres around more local planets, such as Venus and Earth\n\n\n\nHD 209458b orbits a star in the constellation Pegasus, which can be seen with binoculars from the ground. The planet was first detected in 1999 using the wobble method of planet hunting. A separate team of astronomers previously detected sodium in the planet's atmosphere as well\n\nso maybe u r not so silly after all ,as this is a question to be answered satisfactorily answered!!
51399
The earth's atmosphere does not abrubtly stop.  It gradually gets thinner and thinner.  For example, satellites in low earth orbits -- arguably in "space" -- experience much more drag than satellites in higher, geosynchronous orbits.  So, you just have to define a distance as the edge of the sky and the beginning of space.  Here is a commonly accepted definition; read the rest of the article by following the link:\n\n"The Kármán line is an internationally designated altitude commonly used to define outer space. According to definitions by the Fédération Aéronautique Internationale (FAI), the Karman or Kármán line lies at a height of 100 km (about 62 miles) above Earth's surface (ie. in technical terms 100 km above mean sea level). It was named after Theodore von Kármán.\n\nAround this altitude the Earth's atmosphere becomes negligible for aeronautic purposes, and there is an abrupt increase in atmospheric temperature and interaction with solar radiation...."
966458
Earth at Aphelion Search\nhttp://search.yahoo.com/search;_ylt=A0oGkk9cFFFFkDYAzqlXNyoA?p=earth+aphelion&prssweb=Search&ei=UTF-8&fr=yfp-t-501&x=wrt\n\nMoon near Apogee, Earth near Perihelion\nhttp://www.fourmilab.ch/images/peri_apo/\n\nEarth at Aphelion\nhttp://www.spaceweather.com/glossary/aphelion.html\n\nPictures\nhttp://images.search.yahoo.com/search/images?p=earth%20aphelion&prssweb=Search&ei=UTF-8&fr=yfp-t-501&x=wrt&fr2=tab-web
306710
The troposphere is the layer closest to the earth's surface. This is where the earth's weather phenomena occurs. The temperature gets colder as you move upwards.\n\nThe second layer up is the stratosphere. This is where jets fly & ozone occurs. B/c of the ozone layer, it is warmer as you get here.\n\nThe third layer up is the mesosphere. This is where meteorites burn up in our atmosphere. It gets colder here as you go up b/c of less air & moving away from the ozone layer.\n\nThe next layer is the thermosphere. This is the hottest layer and is sometimes called the "heat sphere". It has the least amount of air. It is subdivided into the ionosphere & the exosphere. The ionosphere is where satellites are orbiting the earth.\n\n:)
1147394
On perigee, the moon is closest to the earth. On apogee, it is its farthest from earth. This happens every month, so don't worry if you missed it. I found a good site you can go to:
234427
The true fucnction of the ozone layer for one. I left you a source below. \n\nAlso the first deep space probes were sent out into the solar system during the 70's. Try to google "Mariner space probe" or "Voyager space probe".
110633
Geosynchronous orbit - 22,800 miles altitude over the equator\n\n New Launch: 15 February 2006 2335 GMT  \nSite:Pacific Ocean (206 degrees East - 154 West)  \nLauncher:SL-16 3SL  \nInternational Number(s): 2006-003A  \n  \nSSC Name Owner \n28935  ECHOSTAR-10  USA  \n\nThis is a high-power Ku-band satellite with a life span of 15 years. It will be placed at 250 degrees East.