Neighbour star system may have mini Earth-like planets


  • Alpha Centauri – the closest star system to our planet – may be home to small, rocky Earth-like worlds that have been previously overlooked, according to a study.
  • Astronomers at Yale University in the US have taken a fresh look at Alpha Centauri star system and found new ways to narrow the search for habitable planets there.

Other facts:

  • The universe has told us the most common types of planets are small planets, and our study shows these are exactly the ones that are most likely to be orbiting Alpha Centauri A and B.
  • The Alpha Centauri system is located 24.9 trillion miles from Earth and the discovery of an Earth-like planet last year set off a new wave of scientific and public interest in the system.
  • Because Alpha Centauri is so close, it is our first stop outside our solar system.
  • There is almost certain to be small, rocky planets around Alpha Centauri A and B.
  • This new information will help astronomers prioritise their efforts to detect additional planets in the system.



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