#Astronomers Detect Signature of Magnetic Field on an Exoplanet
They always find something new ... strange isn't it... Sadly nothing they found so far was useful except wasting billions of dollars.
https://news.arizona.edu/story/astronomers-detect-signature-magnetic-field-exoplanet
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While this may apply to exoplanets there is usually something we can take from that about our own solar system.
As a planet we are vulnerable to solar flares for example solar radiation is protected by a magnetic field, if we lose that we are vulnerable, so learning how that works by also observing exoplanets helps us here too.
We could always spend billions developing some super deadly weapon or the next generation nukes, which serve even less purpose.
