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| The light Hubble sees today may have taken thousands, millions, even billions of years to reach us, carrying the story of events that happened in the distant past. Click on the pictures at the top of this page to see how far we are looking back through time. |
| Our galaxy is 100,000 light-years across, which means that light takes that long to travel from one end to the other. The region that Hubble observes best (because the view is not blocked by dust) extends from a few light-years to a few thousand light-years away. This means that light now arriving from these objects left sometime during human history. |
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