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  1. Astronomy

    Hubble’s new instant classic

    NASA has released a stunning image of a nearby star-forming region to celebrate the telescope's 20th birthday.

    By Ron Cowen
  2. Earth

    Emerging Northwest fungal disease develops virulent Oregon strain

    Uncommon but sometimes fatal infections of the lung or brain can show up months after someone inhales spores.

    By Susan Milius
  3. Psychology

    Dream a little dream of recall

    As the sleeping brain builds memories it generates dreams about recently learned material, a new study suggests.

    By Bruce Bower
  4. Space

    Solar-staring spacecraft captures novel views of sun’s violence

    NASA has released the first images recorded by the Solar Dynamics Observatory, the first craft to examine the sun’s entire disk at high resolution and over a multitude of wavelengths.