I just can’t compute how this is possible. How can a telescope detect a gas, which isn’t even visible to the naked eye, on a planet that is an incomprehensible distance away.
[Source](https://www.bbc.co.uk/news/science-environment-66786611)
In: 143
I recommend watching Niel de Grasse Tysons, Cosmos – a spacetime odyssey to fully grasp how mind blowing this is. Episode 5 “Hiding in the light”.
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