Planetary habitability

• NASA proposes a magnetic shield to protect Mars' atmosphere (08 Oct 2017)
  
• What is the Earth's average temperature? (27 May 2016)
  
• What are extrasolar planets? (03 May 2016)
  
• Young sun-like star shows a magnetic field was critical for life on the early Earth (24 Mar 2016)
  
• Rotation of planets influences habitability (28 Oct 2015)
  
• Ancient worlds could be kept 'alive' by gravitational nudges (01 Jul 2014)