article_snippet.sent: All three planets in a unique a planetary system orbiting a nearby star 54 light-years away orbit the star, HD 7924, at a distance closer than Mercury orbits the sun, completing All three planets in the system orbits in just 5, 15 and 24 days.
article_snippet.sent: The three planets are unlike anything in our solar system, with masses 7-8 times the mass of Earth and orbits that take The three planets very close to The three planets host star,' explains UC Berkeley graduate student Lauren Weiss.
article_snippet.sent: All three planets in a unique a planetary system orbiting a nearby star 54 light-years away orbit the star, HD 7924, at a distance closer than Mercury orbits the sun, completing All three planets in the system orbits in just 5, 15 and 24 days .
article_snippet.sent: However, nearly all of the planets' are far from a unique a planetary system orbiting a nearby star 54 light-years away.
highlights_snippet.sent: Planets orbit the star at a distance closer than Mercury orbits the sun .
  