Their activities are allowed. Whatever you own when you launch it remains yours.
The court decision reinforces the intent of the Treaty and removed any doubt as to its interpretation--no celestial body will become private property.
I've got a dumb question. Say NASA and Musk both end up on the moon. Say Musk and Bigelow start a hotel there. NASA's down at Shackleton, and M/B are at some equatorial lattitude. What? Will NASA send Marines down to enforce the OST? I don't think so.
The Russians are currently stuck in LEO, maybe the Chinese will send up some jack-booted thugs. Or the Indians. But right now there are only 2 countries with regular manned launches, and a third with intermittant manned launches.
I'm reminded of a saying, it's easier to ask forgiveness than permission.
>>>The court decision reinforces the intent of the Treaty and removed any doubt as to its interpretation<<<
Are you referring to the one involving Nemitz?