• Question: how far away are these fuzzy blobs

    Asked by hussain to Ezzy on 11 Mar 2012.
    • Photo: Elizabeth Pearson

      Elizabeth Pearson answered on 11 Mar 2012:

      Very far. Billions of light years, though some are closer. Only a few million light years. The light we’re seeing from them was most likely being put out before the earth and sun were even around. It’s why their so interesting. They tell us what the universe was like when it just an unruly teenager, just beginning to form its galaxies and stars.

      (1 billion light years = 1 septilion meters. That’s a 1 followed by 4 zeros.)

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