Astronomers Find First Evidence of Tidal Locking Outside Our Solar System

LHS 3844b or Kua’Kua is what’s known as a super-Earth, or a rocky planet at least twice the Earth, but less massive than ice giants. Astronomers have had their eye on it for years, namely because it’s so close, only around 49 light-years from our Solar System, but also because they believed it was tidally locked with the red dwarf star in which it closely orbits.