Throwing Light on Dark Energy

@article{Kirshner2003ThrowingLO,
  title={Throwing Light on Dark Energy},
  author={Robert P. Kirshner},
  journal={Science},
  year={2003},
  volume={300},
  pages={1914 - 1918}
}
Supernova observations show that the expansion of the universe has been speeding up. This unexpected acceleration is ascribed to a dark energy that pervades space. Supernova data, combined with other observations, indicate that the universe is about 14 billion years old and is composed of about 30%matter and 70%dark energy. New observational programs can trace the history of cosmic expansion more precisely and over a larger span of time than has been done to date to learn whether the dark… 

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  • N. Bahcall
  • Physics
    Proceedings of the National Academy of Sciences
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