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This is a cool video taken by NASA’s EPOXI spacecraft from 31 million miles away. You can see in speed up motion how large Moon passing so close to Earth. This is really fascinating. I really love those videos. What do you think?
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European Space Agency recently released images of all satellites and other stuff such as garbage, and explosion particles floating uncontrollably in orbit. Since lunch of Sputnik on 4 October 1957 until 1 January 2008:
approximately 4600 launches have placed some 6000 satellites into orbit, of which about 400 are travelling beyond geostationary orbit or on interplanetary trajectories.
Today via ESA:
Today, it is estimated that only 800 satellites are operational - roughly 45 percent of these are both in LEO and GEO. Space debris comprise the ever-increasing amount of inactive space hardware in orbit around the Earth as well as fragments of spacecraft that have broken up, exploded or otherwise become abandoned. About 50 percent of all trackable objects are due to in-orbit explosion events (about 200) or collision events (less than 10).
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Trackable objects in orbit around Earth |
Debris objects in low-Earth orbit (LEO) |
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Objects in Low Earth Orbit (LEO) - view over the North Pole |
The geostationary ring |
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Explosions of satellites & rocket bodies |
Distribution of known objects in GEO |
Info via ESA (European Space Agency)
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How does a Big-Bang Theory works? Look across space from one edge of the visible universe to the other, and you’ll see that the microwave background radiation filling the cosmos is at the same temperature everywhere. That may not seem surprising until you consider that the two edges are nearly 28 billion light years apart and our universe is only 14 billion years old….
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