Is it true that I see the NORTHERN sky hemisphere when I sit\non right side. What bright star (planet MARS??) do I see slightly back 3 to 4 hours into the night flight? And what is the bright lucent "star" I see ahead about 2-3 hours before landing? Venus?\n\nAdditonal question: could Venus be seen in the middle of the \n(flown into) night, exactly between East and West, since for the ones it is the morning star, for others the evening star?
207725
the flight path would start off heading northeast, hours later it would be due east, then a bit to the southeast over europe (to follow the arc of the great circle between the two cities).  from an altitude of 35,000 to 40,000 feet, you would be able to see stars that are typically below the horizon at those latitudes.  sitting on the right side of the plane, you would be looking south.  for the beginning of the trip, you would be looking at the winter stars, including sirius (the brigthest star in the sky), rigel and betelgeuse (in orion), and procyon.  saturn will also be visible in this direction and will not be quite as bright as sirius.\n\nmars is not very bright at this time -- definitely no brighter than surrounding bright stars.  after a local time of 10pm, jupiter will rise in the east, so by a local time of 1am, it would be a very bright object in the southern sky and visible out your window.\n\nvenus is only visible in the morning sky now, so you would only see it as you were approaching europe.  it can be either an evening star or a morning star, but never both at the same time.  venus is never visible at or near local midnight.\n\nto get the local time, you would have to know what timezone you were in at each point in your flight and adjust from u.s. central time as you fly.
349806
The waxing crecent moon is always in the west, just after sunset.\n\nEach evening, if you look after sunset, you will see it higher in the sky, and a bigger crecent.  After a week, it is high in the sky in the evening, and is a half-moon (first quarter moon).  The next week, it is more and more to the east each evening, and it is a waxing gibbous moon.  Finally, two weeks after the new moon, it rises in the east as a full moon sometime around sunset.
29682
There is a surprisingly simple answer to your great question: Each month we see different stars, so to answer for a specific night of the year at your specific location on Earth depending on your eyesight and how bright the city lights around you are might be hard to pin down. \n However there is a magnitude scale that astronomers use to describe how bright objects in the sky are. Without getting into details on how that works, the average human being can see down to about magnitude 6 ( brighter objects have lower magnitude until you reach zero. Then even brighter objects use negative numbers for their magnitudes which is a bit weird, isn't it?) Therefore, all you have to do is get a map of the whole sky showing anything brighter than magnitude 6 and count the stars. If you are fortunate to be away from bright city lights and you can see the Milky Way, you would be really surprised to know that you can only see about 6,000 stars. That's the number of stars above magnitude 6 in the entire sky.
94273
This is caused by thermic convection of the air. In the deserts you normally have high differences in temperature between day and night, so hot air is rising rapidly while cold air is moving downwards after sunset. This different densities in the air makes the light bend and the stars seems as if they are dancing, just as if you were looking through an irregular glass. \nIt's a bad night for astronomers.
302873
i want to see the daily path of the sun on the sky:\n\nrising from east and setting to west as everywhere on earth but going through north at noon not south as in northern hemisphere. must be fascinating to see: all shadows at noon pointing south instead of north\n\nlove your beaches too
368520
Scientists using NASA's Spitzer Space Telescope have discovered and directly imaged a small brown dwarf star, 50 times the mass of Jupiter, orbiting with a planet around a Sun-like star. Such an arrangement has never before been seen but might be common, the scientists say, leading to solar systems with distorted planetary orbits.\n\nKevin Luhman of Penn State University is the lead author on a report describing this discovery, which will be published in The Astrophysical Journal. The discovery concerns a class of the coldest brown dwarfs, called T dwarfs.\n\n\nThe detailed research paper on T dwarf - Ref\nhttp://www.science.psu.edu/alert/Luhman9-2006-2.htm
217921
Hi! Venus in the sky is an amazing sight! Being an inner planet of the solar system, Venus is only visible for a few minutes either just before sunrise or just after sunset.\n\nThe best time to view the planet is before sunrise. You will be able to observe Venus in the east. Check your local newspaper for the timings of the sunrise. Preferably, go to a place at high elevation so that Venus is not obscured by any high buildings there may be.\n\nHope you have a good sighting of the morning star soon!
27910
first of all, to Paranoid Princess:\n\nwhoa, whoa WHOA.  just a minute.  the sky is not blue because there's liquid oxygen in the upper atmosphere.  that's just retarded and you shouldn't go presenting bizzare mis-truths as fact when they *aren't* fact.\n\nhere is a profile of temperatures at various altitudes:\nhttp://www.windows.ucar.edu/tour/link=/earth/images/profile_jpg_image.html\nas you can clearly see the lowest temperature is about -100C.  oxygen liquefies at -182C at normal pressures (reference: http://www.ucc.ie/ucc/depts/chem/dolchem/html/elem/elem008.html ), and even lower temperatures at the low pressures in the upper atmosphere.  PLEASE don't present some bizarre fiction as truth to someone who isn't well-informed enough to know that you're simply fabricating nonsense from thin air.  if you have simply been misled by someone else, at least try to do a marginal amount of research before answering a question on something you don't know much about.\n\nthat said, to the original asker:\n\nthe sky is blue because of a phenomenon called "rayleigh scattering", which occurs because the molecules of air (mostly N2 and O2) happen to be the right size to scatter blue light in all directions.  some of this blue light reaches your eye after being re-scattered again by a second molecule, sometimes all the way across the sky.  \n\nthis is also why the sky turns red at sunset - at low angles, the sunlight has to travel a longer distance through the atmosphere, and by the time it reaches your eye, a lot of the blue light has already been scattered away, leaving yellow orange and red.  (i have yet to hear any explanation of why the sky doesn't turn green between daytime and sunset, though.  still tryin' to figure that one out.)\n\nanyway here are some home/school experiments designed to illustrate rayleigh scattering:\nhttp://www.physics.brown.edu/physics/demopages/Demo/optics/demo/6f4010.htm\nhttp://www.chaosscience.org.uk/dem/public_html/article.php?story=20050222224622239\nhttp://teachers.web.cern.ch/teachers/archiv/HST2002/smallexp/krug/Rayleigh.htm\nhttp://bulldog2.redlands.edu/facultyfolder/deweerd/research/scattering-AJP.pdf\nhttp://www.ktca.org/newtons/9/sky.html\n\nalso, a nice page illustrating rayleigh scattering:\nhttp://hyperphysics.phy-astr.gsu.edu/hbase/atmos/blusky.html\nand a slightly more advanced version:\nhttp://world.std.com/~mmcirvin/bluesky.html
412355
Wow! Thanks for the "heads up".  I wasn't aware of that.  I'm in Florida, so around 2pm here I should be able to set up some equipment so that the whole office can see it.  We have a lot of optical equipment here so it'll be a great opportunity.\n\nFor Jessi:\nYou can take a telescope and point it towards the sun. (Don't look through the telescope)  Then project the sun's image onto a blank sheet of paper and focus until you see the sun's image.  You'll be able to see sunspots and Mercury passing from right to left along the bottom side of the image.  It should last from about 2pm edt until sunset.
69324
It is Olbers' Paradox.\n\nWhy isn't the night sky as uniformly bright as the surface of the Sun?  If the Universe has infinitely many stars, then it should be.  After all, if you move the Sun twice as far away from us, we will intercept one quarter as many photons, but the Sun will subtend one quarter of the angular area.  So the areal intensity remains constant.  With infinitely many stars, every angular element of the sky should have a star, and the entire heavens should be as bright as the sun.  We should have the impression that we live in the center of a hollow black body whose temperature is about 6000 degrees Celsius.  This is Olbers' paradox.  It can be traced as far back as Kepler in 1610, and was rediscussed by Halley and Cheseaux in the eighteen century; but it was not popularized as a paradox until Olbers took up the issue in the nineteenth century.
565473
12:25 AM eastern daylight time july 3rd....Stay up late sunday night! With a little luck you may see it but they say unless you have a good telescope it probably wont be viewable....I have mine ready so if I get lucky we will send a pic!
129142
Some of them can be identified by the naked eye . . . They are brighter, seem to twinkle less (in my opinion), and have a tinge of color. After someone points out Mars, Jupiter, Venus and Saturn, you can find them just by looking for them.\n\nWhen you look for planets on a certain date, you need to know your latitude and the time that you will be looking becuase both of these affect the position of the planet in the sky.\n\nCheck out the sources for exact locations given time and latitude in your area.
561431
Venus. This time of year though Venus is visible in the early morning so if you see this "star" at night rising from the east it may be Jupiter. It's quite bright as well.
660680
yeah in missouri. i was laying in a hammock and looking at the stars(not sleeping and not on drugs) when i saw a blue glow flying really low and really fast. as quick as it appeared it dissapeared. after about fifteen minutes it returned but this time it was flying increadably fast and then stopped in midflight only to hover about 200yards above where I was laying.  i watched it hover there for about 2-3 minutes.  it wasnt round like in the movies either to all you skeptics it was triangular in shape but instead of being straight lines they were concave.  the blue glow came out from the sides. there werent any windows that i could see. and no i didnt see any aliens. it hovered there above me for 2-3 minutes and then took off straight up into the sky until i couldnt see it any more. no one believed me when i went inside, but i know what i saw. has any one else seen an Ufo like this?
9217
The Planets Venus and Jupiter. Especially Venus as you will always find it close to the horizon in either the evening or morning. They are so bright that they seem to move with you like the illusion of the Moon following you, especially if you're driving. Also bright stars twinkle when they are low to the horizon due to atmospheric disturbances. \nOtherwise people might see airplanes, helicopters, weather balloons, satellites, or meteors.
150343
*** Answers To The Springtime Trivia *** \n\nQ. What color roses do Women prefer? Men?\nA. Studies show women prefer pastel colored roses, while men prefer red. \n\nQ. What type of bulb can substitute for an onion?\nA. Tulip bulbs can be used in place of onions for cooking. \n\nQ. What day does the Vernal Equinox take place?\nA. On March 20, the Vernal Equinox occurs, and Spring Begins. On the Equinox, the sun rises exactly in the East, travels through the sky for 12 hours, and sets exactly in the West; every place on earth experiences a 12-hour day. \n\nQ. What two flower colors do honeybees prefer?\nA. There are approximately 270,000 species of flowers; honeybees prefer yellow and blue ones. \n\nQ. How many flowers must bees collect pollen from to make a one pound comb of honey?\nA. Bees collect nectar from 2 million flowers to make a 1-pound comb of honey. \n\nQ. Do children grow twice as fast, or gain more weight in the spring?\nA. Children grow twice as fast in the spring, but gain more weight in the fall. \n\nQ. How many worms does a young robin eat daily?\nA. A young robin will eat as much as 14 feet of earthworms a day. \n\nQ. Where does a hummingbird?s ?hum? come from? Are they all the same?\nA. The hum of a hummingbird comes from the swift beat of its wings. The smallest birds beat their wings up to 80 times per second; bigger birds are slower, at up to 20 beats per second. \n\nQ. What is the average lifespan of a small cloud?\nA. The average lifespan of a small cumulus cloud is 10-15 minutes. \n\nQ. If you are standing next to someone, do you both see the same rainbow?\nA. A rainbow is formed by the reflection of specific raindrops, and a person standing next to you will see different droplets from the ones you see. Thus, although many people can look at a rainbow at the same time, it will appear different to each person. \n\n*** MORE Springtime Trivia *** \n\n? The rare and expensive spice saffron comes from a certain type of crocus.\n? In 1986 Congress voted to make the rose America's national flower.\n? California is our source for nearly 60% of all USA-grown fresh cut flowers.\n? Americans bought more than 1.2 BILLION fresh cut roses last year. That's 4.67 roses for every man, woman, and child nationwide.\n? Romans believed that white roses grew where tears fell as Venus cried over the loss of Adonis. Her son Cupid, stung by a bee, shot arrows in the rose garden. The sting of the arrows became thorns.\n? According to a 2000 national survey, 74% of women preferred to receive flowers for no reason at all. (*Society of American Florists)\n? In 1986 Congress voted to make the rose the national flower of the United States.\n? Scientists confirm that some of the first flower fossils date back over 90 million years.\n? Native Americans once used sunflower meal to make bread. Archaeologists recovered remains of sunflower seeds dating back to 800.
511686
ahhh more swamp gas refracting off venus with a strange cloud formation, is what they'll have you believe.\nfollow it up at http://www.ufoevidence.org/ \nGood luck