The study warns that the search for alien life could be marred by the fear of 'false positives'.

Could there be life on other planets, and if so, what would it look like? Astrobiologist Lewis Dartnell is hunting for alien life in whatever form it takes. Join him as he explores how life developed ...

NASA officials have previously spoken of the possibility of extraterrestrial life amid scientific uncertainty while highlighting the agency’s role in collecting evidence for the search of alien life.