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Earth sciencesEdit

  • September 28 – A long-awaited earthquake strikes Parkfield, California, the most closely monitored earthquake zone in the world. The earthquake, which had been expected to have occurred by the late 1980s, strikes at a magnitude 6.0. The network of instruments that had been installed in the region make this the most well-recorded earthquake in history.
  • December 26 – Indian Ocean earthquake and tsunami.






Space explorationEdit





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  2. ^ Brown, Michael E.; Trujillo, Chadwick; Rabinowitz, David (10 December 2004). "Discovery of a Candidate Inner Oort Cloud Planetoid". The Astrophysical Journal. 617 (1): 645–649. arXiv:astro-ph/0404456. Bibcode:2004ApJ...617..645B. doi:10.1086/422095.
  3. ^ "Chandra :: Photo Album :: Galaxy Clusters and Dark Energy". 18 May 2004.
  4. ^ Giles, Jim (2005). "Huge explosion traced to exotic star". Nature. doi:10.1038/news050214-18.
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  6. ^ "Fossil find 'oldest land animal'". BBC News. 2005-01-25. Retrieved 2014-05-25.
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  8. ^ Kim, E.; Chan, M. H. W. (2004). "Probable observation of a supersolid helium phase". Nature. 427 (6971): 225–227. Bibcode:2004Natur.427..225K. doi:10.1038/nature02220. PMID 14724632.
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  10. ^ "Nano-foam makes magnetic debut –".
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  14. ^ "This Month in Physics History: October 22, 2004: Discovery of Graphene". APS News. Series II. 18 (9): 2. October 2009. Retrieved 2016-11-27.

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