Mr Schoonover is a neuroscience PhD candidate at Columbia University who is well known for as a science communicator.
He explained: 'Let’s say I want to study neurons x in area y of the brain and I want to know what they look like and I want to know how they develop over time while the animal is developing and growing, I can deliver the gene-triggering fluorescent protein to those cells during development and just look.
'They are lighting up for me because they are expressing that gene, it’s that simple.'
However, in comparison to astronomy, we are at the stage stargazing was before the invention of the telescope, Mr Schoonover believes.
Read more: http://www.dailymail.co.uk/sciencetech/a...z2ENrO7eZU
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Brainbow (like a rainbow).