A rocky composition for an Earth-sized exoplanet.

Andrew W Howard1, Roberto Sanchis-Ojeda, Geoffrey W Marcy

  • 1Institute for Astronomy, University of Hawaii at Manoa, 2680 Woodlawn Drive, Honolulu, Hawaii 96822, USA.

Nature
|November 1, 2013
PubMed
Summary

Researchers measured the mass of Earth-sized exoplanet Kepler-78b using Doppler spectroscopy. Its density is similar to Earth's, suggesting a rocky composition, providing insights into exoplanet diversity.

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