Science
Here’s How You Can ‘See’ Molecules—on a Whole ‘Nother Planet – WIRED
Scientists picked up signs of phosphene on Venus by using a technique called rotational spectroscopy. It works like this.

So maybe you heard this thing about possible signs of life on Venus. Yes, it’s Venus this time and not Mars. Scientists have detected the signature of the molecule phosphine in the atmosphere of this planet using rotational spectroscopy. As far as we understand it now, the only way to get phosphine is to make it in a lab or as a byproduct of some types of bacteria. Oh, bacteria on Venus? That would be kind of a big deal.
Now, some pretty awesome physics are involved in the possible detection of…
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