• The planets, invisible to the naked eye, betrayed their existence by the slight wobble they created in their host star.
  • The three planets are unlike anything in our solar system, with masses seven to eight times the mass of Earth and orbits very close to their host star. To date, most of the planets discovered outside our solar system have been the size of Neptune — 17 times the mass of Earth — or larger, with the majority gas giants like Jupiter, which are several hundred times the mass of Earth.
  • The goal of the APF is to find small planets around the nearest stars, some of which might have temperatures and surface conditions suitable for life. The robotic observations of HD 7924 are the start of a systematic survey for super-Earth planets orbiting nearby stars.

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