NASA scientists have discovered there is possibly more than one life forming chemical in the universe.
They were looking for a chemical found in every living organism on earth.
Scientists observed over 60 stars.
They were not able to find any traces of the basic DNA element in 70% of the stars which were similar to our sun.
Also, they also did not find any traces of the element around the cooler and smaller stars similar to commonly found reddish-colored stars known as M-dwarfs (see below for definition).
Considering some recently discovered M-dwarf stars have been thought of as simply larger versions of Earths or “Super Earths,”scientists now find themselves questioning what type of life, if any, could these other earths sustain.
M-dwarf: “An M dwarf is the smallest kind of star there is. They have masses ranging from about 50 percent of the Sun’s mass down to about 8 percent of the Sun’s mass. That’s a huge range, as far as stars are concerned. Because, for example, the amount of light coming to our eyes, if we were on a planet going around an M dwarf, would vary from one end of the range to the other by a factor of about 10 thousand. So you have a lot of different environments around M dwarfs.” (astrobio)