What can be seen on earth from space?
There is a longstanding myth that the Great Wall of China is the only manmade object visible from space. It and several variations on the theme are great fodder for water cooler arguments. In reality, many human constructs can be seen from Earth orbit. Shuttle astronauts can see highways, airports, dams and even large vehicles from an Earth orbit that is about 135 miles (217 kilometers) high. Cities are clearly distinct from surrounding countryside, and that's true even from the higher perch of the International Space Station, which circles the planet at about 250 miles (400 kilometers) up. "You can see an awful lot from space," says astronaut Ed Lu, the science officer of Expedition Seven aboard the station. "You can see the pyramids from space, especially with a pair of binoculars. They are a little difficult to pick out with just your eyes." Egyptian pyramids have been photographed from space several times with standard digital cameras and high-powered lenses. The largest pyramid at Giza, on the outskirts of Cairo, is 745 feet (227 meters) wide and 449 feet (137 meters) tall. "With binoculars you can see an awful lot of things," Lu wrote via e-mail in fielding a question from an Earthbound space fan. "You can see roads. You can see harbors. You can even see ships; very large tankers on the ocean we can see using the binoculars." There are some surprises, too. "You can see airplane contrails, and occasionally at the end of an airplane contrail, you will see a glint of sunlight off the airplane," Lu says. "And very occasionally, you do see other satellites go by. It is kind of a neat thing to see." There are of course places in space from which you can't notice how humans have sculpted the planet. Apollo astronauts could not make out manmade features from the Moon, for example. And from Mars, Earth would appear to the naked eye as nothing but a bright "star" in the night sky. So what about the Great Wall of China? "You can see the Great Wall," Lu says. But it's less visible than a lot of other objects. And you have to know where to look. In fact stretches of the wall aren't even visible from China. They've been buried by sand for centuries. NASA has used space-based radar to map out hidden parts of the ancient structure. Lu is trying to get a picture of it, too, with a digital camera. "The weather hasn't cooperated," he says. "There has been a lot of clouds and haze over that area since I've been trying. But I hope to be successful before I come back down."
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No, Antarctica is not the only place that has been seen from space by astronauts. It has been said that one can clearly see the Great Wall of China from space. Also there are …certain places on earth that are clearly seen from space because of it's certain type of peculiarity. It is said that the beam of light from the Luxor Hotel & Casino in Las Vegas can be seen from space.
Because sound needs a material medium to travel through, and can't go anywhere through the vacuum of space. Besides, even if it could, it would take sound ... moving at t…he speed of sound ... 874 thousand years to cover one light year of distance. We'd still be hanging around waiting to hear the supernova that was discovered in 1054 AD.
Pretty much all the exterior ones; ever look at Google Earth?
The Great Wall of China was said to be the only man-made structureon earth visible from space. However astronauts have tried to seeit and failed. If you go on Google Earth or …similar you can try tofind it from an altitude of 100km (the official "edge of space").The problem is not the length, but the width of the wall. Itsnarrowness makes it invisible. At night, lights from major cities may be visible. Cities wouldcount as a man-made structure. During the day, cities and airportsare visible from low Earth orbit. At a distance of several thousand miles, only clouds, continents,ice caps, and major bodies of water are visible (weatherpermitting). Nothing man-made except the lights of cities can beseen from the Moon. A recent addition to the "visible from space" collection of Earthlyobjects are the Athabasca Oil Sands projects in Alberta Canada.These are vast open pit mines which allow the removal of sandssaturated with heavy bitumen for oil recovery.
Because it wants to!
Mostly blue and white. The Earth is 75% covered with water, and much of the Earth is covered with clouds.
Sound travels through air or solid material. There is no air inouter space. Adding on would like to mention that sound waves required medium totravel, in order to do so it mus…t have a conductive medium, whichspace doesn't have since there is vacuum out there. So it doesn'treach us.
Australia, Antarctica, N. America, S. America, Africa, Europe, Asia
\nThe Great Barrier Reef.
It is a myth that the Great Wall of China can be seen from space. There are no man-made features on Earth that are visible with the naked eye from the Space Shuttle's windows.… On the night-side of Earth, of course, it's a different story; you can't see individual lights, but the vast swath of lighted cities is easily visible. The only exception is reservoirs. You cannot see the dams themselves, but the larger lakes are visible.
Given the development of technology in recent years, almost anything bigger than a fist can be in detail, and according to some conspiracy hypothesists objects no bigger than …an ant may be discernible.
In Planet Earth
When viewed from space, the Las Vegas strip is the brightest placeon earth.
As a normal everyday individual, we don't get the chance to see what earth looks like from space in person like astronauts do. Instead we we can search websites such as Googl…e image to see pictures of earth from space.
Anything that is too far away or doesn't emit enough light. No planetoid can't be seen with the naked eye. Most stars, even the closest ones, can't be seen with the naked eye,… since they are too faint to be seen - the stars that you do see have an above-average brightness. Comets - such as the ones in the Oort Cloud - can't be seen even with telescopes, unless they happen to come fairly close to us. The farthest known galaxies can be seen with large telescopes, but the individual stars cannot be seen. Etc.
No, and this has been shown time and again by photographs taken byastronauts. Although built environments such as towns and citiescan be made out, no political boundaries of a…ny kind are observedlooking at Earth from outer space. Political boundaries areman-made social constructs, not physical or natural ones. Countriesor sovereign states are artificial social entities also created bypeople and not physical or natural ones which can be observeddirectly. Astronauts have often commented on the natural beautiesof our planet such as the oceans, lakes, rivers, forests,mountains, and clouds.