Tag: Terrestrial Exoplanets

  • Discovery Alert: An Ice-Cold Earth?

    Discovery Alert: An Ice-Cold Earth?

    A candidate planet that might be remarkably similar to Earth, HD 137010 b, has one potentially big difference: It could be colder than perpetually frozen Mars.

  • Discovery Alert: Four Little Planets, One Big Step

    Discovery Alert: Four Little Planets, One Big Step

    The Discovery Four rocky planets much smaller than Earth orbit Barnard’s Star, the next closest to ours after the three-star Alpha Centauri system. Barnard’s is the nearest single star. Key Facts Barnard’s Star, six light-years away, is notorious among astronomers…