Alien Solar System

Scientists detect a potential biosignature gas in the atmosphere of exoplanet K2-18b-one that, on Earth, is only produced by living organisms like phytoplankton

Report references 144 incidents since 2004 where US service personnel reported close encounters with unidentifiable aerial objects

The eight-planet system -- the largest known outside of ours - orbits a star called Kepler 90 some 2,545 light-years away