ANSWERS: 5
  • Because what you're seeing is what happened 5,000 years ago. Nothing is faster than the speed of light.
  • Take our sun, it takes 8 min for the light to reach earth, so you are seeing the sun as it was 8 min ago.
  • Because it is the Boomerang Nebula. It had special powers that no other one does. Sight of it will return to you.
  • "If you've ever wondered how big the universe is, you're not alone. Astronomers have long pondered this, too, and they've had a hard time figuring it out. Now an estimate has been made, and its a whopper. The universe is at least 156 billion light-years wide. In the new study, researchers examined primordial radiation imprinted on the cosmos. Among their conclusions is that it is less likely that there is some crazy cosmic "hall of mirrors" that would cause one object to be visible in two locations. And they've ruled out the idea that we could peer deep into space and time and see our own planet in its youth. First, let's see why the size is a number you've never heard of before. Stretching reality The universe is about 13.7 billion years old. Light reaching us from the earliest known galaxies has been travelling, therefore, for more than 13 billion years. So one might assume that the radius of the universe is 13.7 billion light-years and that the whole shebang is double that, or 27.4 billion light-years wide. But the universe has been expanding ever since the beginning of time, when theorists believe it all sprang forth from an infinitely dense point in a Big Bang. "All the distance covered by the light in the early universe gets increased by the expansion of the universe," explains Neil Cornish, an astrophysicist at Montana State University. "Think of it like compound interest." Need a visual? Imagine the universe just a million years after it was born, Cornish suggests. A batch of light travels for a year, covering one light-year. "At that time, the universe was about 1,000 times smaller than it is today," he said. "Thus, that one light-year has now stretched to become 1,000 light-years." All the pieces add up to 78 billion-light-years. The light has not traveled that far, but "the starting point of a photon reaching us today after travelling for 13.7 billion years is now 78 billion light-years away," Cornish said. That would be the radius of the universe, and twice that -- 156 billion light-years -- is the diameter. That's based on a view going 90 percent of the way back in time, so it might be slightly larger. "It can be thought of as a spherical diameter is the usual sense," Cornish added comfortingly. (You might have heard the universe is almost surely flat, not spherical. The flatness refers to its geometry being "normal," like what is taught in school; two parallel lines can never cross.)" Source and further information: http://www.space.com/scienceastronomy/mystery_monday_040524.html Further information: http://en.wikipedia.org/wiki/Expanding_universe
  • you can see it beacause its been around for over 5000 years so we see it as it was 5000 years ago not as it currently is, for all we now it dosent exist anymore

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