January 10 , 2020
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	- Transiting Exoplanet Survey Satellite (TESS) has discovered an Earth-sized planet, termed as “TOI 700 d”, within the habitable range.
 
	- Earth-sized planet located in constellation Dorado.
 
 
Habitable zone: 
	- Habitable zone is known as Goldilocks zone or Circumstellar Habitable Zone (CHZ).
 
	- A habitable zone, also called the “Goldilocks zone”, is the area around a star where it is not too hot and not too cold.
 
	- Our Earth is in the Sun’s Goldilocks zone.
 
About TESS:
	- It is an all-sky survey mission launched by NASA in 2018.
 
	- It seeks to discover exoplanets around nearby bright stars.
 
                                 
                            
                                
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