Could invisible aliens really exist among us? An astrobiologist explains

Life is pretty easy to recognise. It moves, it grows, it eats, it excretes, it reproduces. Simple. In biology, researchers often use the acronym “MRSGREN” to describe it. It stands for movement, respiration, sensitivity, growth, reproduction, excretion and nutrition. But Helen Sharman, Britain’s first astronaut and a chemist at Imperial College London, recently said that alien […]

Read More Could invisible aliens really exist among us? An astrobiologist explains

Could invisible aliens really exist among us? An astrobiologist explains

Life is pretty easy to recognise. It moves, it grows, it eats, it excretes, it reproduces. Simple. In biology, researchers often use the acronym “MRSGREN” to describe it. It stands for movement, respiration, sensitivity, growth, reproduction, excretion and nutrition… More about this article in link… https://phys.org/news/2020-01-invisible-aliens-astrobiologist.html

Read More Could invisible aliens really exist among us? An astrobiologist explains