The importance of darkness, solar eclipses, Mars, the Webb Telescope and just how dangerous space is are the subjects for ...

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Einstein once called the cosmological constant his “greatest blunder,” but modern discoveries of the universe’s accelerating expansion reveal it as a key insight, now linked to dark energy shaping the ...

Introduction -- Hubble's universe -- Hubble's top science accomplishments -- The message of starlight -- Crucibles of creation -- Starry tapestry -- Blaze of glory -- Hubble's invisible universe -- ...