Spaceflight Insider

News Archive / Tagged: radial velocity

  • Third planet found orbiting Proxima Centauri

    Laurel KornfeldFebruary 22nd, 2022

    Proxima Centauri, the star closest to our Sun, may host a third planet that has just 25% the mass of Earth, according to a new study published in the journal Astronomy and Astrophysics.