The last of a series of pieces I wrote for the BBC about ESO's telescopes in the Atacama Desert - why do they fire massive lasers into the atmosphere? ⚛️🧪 www.bbc.com/future/artic...
bbc.com
Why astronomers make fake stars with huge lasers
For the first time in its history, the Very Large Telescope in Chile is operating with up to seven lasers that fire up into the atmosphere. But why do astronomers need them?
