NASA planet hunter finds Earth-sized world in habitable zone

News: TESS has discovered an Earth-sized planet, termed as “TOI 700 d”, within the habitable range of its star TOI 700, located in constellation Dorado.


“Goldilocks zone”/ circumstellar habitable zone (CHZ)/ habitable zone: It is the range of distances from a star where liquid water might be found on an orbiting planet given sufficient atmospheric pressure.

Transiting Exoplanet Survey Satellite (TESS):

  • It is an all-sky survey mission launched by NASA in 2018.
  • It seeks to discover exoplanets around nearby bright stars.