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Can Earth point satellites be used to study the gamma-ray burst from Earth Lightning? Can Geodnet develop some cube sats for the expansion of use?

No net yet, but it has been discussed that you may sometimes get GPS on the moon when
there are four or so satellites luckily lined up so as to provide coverage on the moon.
I am sure Elon has a plan for Mars.
Here is one article: https://www.freethink.com/space/satnav-moon