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• Faster Walk on the Dark Side
  Recent observations have confirmed the 1997 discovery that the Universe is expanding at an increasing rate. These new observations also show the relative abundances of dark energy, dark matter, and ordinary matter.
• Seeds of Modern Universe
  Another satellite charged with studying the Cosmic Microwave Background has returned a detailed baby picture of the Universe, with the seeds of moder structures finally coming through.
• Biggest Mystery: What is Dark Energy?
  The nature of dark energy is still a puzzle, with several theories in current contention, including the cosmological constant and quintessence.
• Sorting Out the Dark Stuff
  A brief description to clarify the difference between "dark energy" and "dark matter" – two very different unseen components of the Universe.
• 'First Light' Wins Nobel
  The scientists responsible for the first detailed spectrum and map of the cosmic microwave background are honored with the Nobel prize for physics.
• Journey to Cosmos' Dark Heart
  NASA plans to study the nature of dark energy in more detail by collecting data for ever-more-distant supernovae. Three satellite missions are currently in contention.

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