Partly repeating what others said, but although space is definitely a growing area, the immediate space targets involving people potentially are returns to the moon and trips to Mars.
Venus has been very challenging to land on with robotic spacecraft due to the high temperatures, due to runaway greenhouse effect, and highly acidic conditions, very high pressures, among other factors.
While numerous unpeopled craft have gone by Jupiter, it can't have a landing due to it being a gas giant planet. The idea of sending people to any outer planet is many orders of magnitude more challenging than Mars, even if they did have surfaces.
While I see others have priced Venus domain names high, and I think there is some chance of a sale of your or others names, I think the probability of a sale is small, probably no more than the typical 1 chance in 100 of selling less than a year.
One issue with any two word name is usually there are many roughly equal alternatives. e.g. GoToVenus, VenusTrip, VenusVoyage, TourVenus, SeeVenus, GoVenus, etc.
I imagine people like Elon Musk gets a ton of unsolicited domain queries. I think any time he wants a domain name he will go seeking it, like he did with Tesla. He knows domain names, spent a ton of cash and time to secure that name.
Does anyone know if Musk has ever bought a multi-word domain name? I mean I guess in some sense SpaceX could be viewed as Space + X. Just curious.
I know it is easy to feel impatient to get a sale, but most of the time names don't rapidly turn around unless they are a name without good alternatives with a ton of possible uses (mainly single word .com and perhaps .io and a few other TLDs).
Not saying you should, but if you did decide to lower price by about a factor of 10 or a bit less the potential buyer pool would go up to possibly include reference, game, entertainment, writer, etc. sites, maybe.
I see that V e n u s T r i p has been registered and deleted by 8 others in the past 21 years before the most recent hand reg. It means many saw value in name (good) but also many tried an did not sell it (bad, sort of). That said, I agree this is the best era to sell space names in quite some time.
Best wishes for them,
Bob
Not sure you still can, but might want to mask the two names but putting spaces (like I did) or dashes or something or an image so this thread will not show up in Google search.