The powerful vision of the Hubble Telescope - which turns 20 this week - has expanded our cosmic horizons and brought into sharper focus a new set of mysteries about the universe that is our home.
To those whose science is gleaned from the media, astronomy may seem to be on a roll. And it is.
We have established, in outline, a consensus picture of how, from a hot dense beginning nearly 14 billion years ago, our expanding universe developed galaxies, stars and planets.
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