2017-January-20

The gamma rays CTA will detect are about 10 TRILLION times more energetic than visible light (up to 300 TeV)!… https://t.co/iYi2ZGwaye

The gamma rays CTA will detect are about 10 TRILLION times more energetic than visible light (up to 300 TeV)!… https://t.co/iYi2ZGwaye