This is another space program set in the Whirligig World mod for Kerbal Space Program, set on the planet Mesbin.
Children of Destiny, Part 2b: Ups and Downs, Mesbin
The Mesbinites don't have an answer to Satellite Four and its return to the surface- but maybe they don't need one, not just yet.Reunion 1 is a lander, though....It's just designed for the nearest of Mesbin's moons, little Statmun.Statmun, as an asteroid, is small enough that a spacecraft like Reunion 1 can be expected to make several 'hops' across its surface before running out of fuel.First is a small northern hill, though not that far north.After a few orbits of battery charging to recover from the costly transmission of scientific data, it's up again......and off to another hill.There's been an enduring mystery about Statmun, though- it's so small, and so close to Mesbin, that really... it should have been flung apart long ago.While the cause of this is fairly well-understood, at least since the start of the space age (Statmun is a single monolithic mass of metal)....As Reunion I slides across Statmun's surface, pushed onto an escape trajectory just by the speed of the surface itself, it's nice to have experimental confirmation.Reunion I finds a place for its final fuel-deprived rest in Statmun's northern latitudes.Reunion II is much like its sister, but unlike Reunion I it'll explore the southern half of Statmun.Doing a little surveying to find the lowest parts of Statmun, for the best chance at staying fixed at the equator.This deep, flat area seems to be the closest to the center.The spacecraft heads down...Finding a particularly deep set of craters.Reunion II finds that even the closest part of Statmun's equator to the center of the moon move too fast to stay put on.After a night of floating up, it takes effort to get back to the initial position!A particularly promising crater is found to the south....Twenty-five degrees south, a deep crater has a section of floor that's angled just enough to keep the spacecraft from sliding up off the wall into space.A fascinating spot found, Reunion II continues back towards the south pole.It stops a few times along the way, of course.The pole is in sight!...And Reunion II finds itself stuck in the rugged terrain.Outreach VI isn't a lander- but it'll have a long journey of its own.It takes a lot of effort to launch something with its own kicker stage to orbit!After a loop or two around Mesbin, the bundled upper stage boosters fire to place the spacecraft on a path outwards.Incidentally, it passes by Statmun at high speed.Soon enough, though, its true target- Graymun- looms ever-closer.While it can't communicate with Mesbin, with the planet blocked by Graymun's bulk as it is, Derbinite antennae can just about see it as it passes further from Mesbin than even the abortive Kerbmun Shuttle Plan ships.Once safely out from behind Graymun, Outreach VI can transmit the first truly high-fidelity views of Graymun's outer hemisphere- Derbinite observatories, while large, find it hard to peer through Derbin's many cloud layers; and neither of the crews of the U.S.C. Magnificent Desolation or the F.S. Deepsky Meandering were particularly interested in astronomy- especially not as their journeys drew to a close.It passes by Thresomin at a fair distance, enough to learn a little more about it each time but nowhere near as well as Graymun. It's also in a good position to catch eclipse shadows!The peculiar geometry of the flybys means that Outreach VI passes over similar parts of Graymun each time- but naturally these parts are all largely unknown to Mesbin below, so it's always useful new information.Many small maneuvers are made to guide the spacecraft properly towards repeated approaches to Graymun.Outreach VI closes in for its one close flyby of Thresomin.While it speeds by so fast that it's hard to ascertain information, a peculiar reading catches the eye of the public- Thresomin may be outgassing, very slightly. When presented with a puzzle like that, who wouldn't want to know the answer?"Then it's back to Graymun flybys, of course. Many enticing views are to be had- for example, this odd off-kilter view of Mesbin's larger moons."This is a temporary setback," says Outreach program direction Marleb Podman. "While we're unsure of the reason for the loss of Outreach VI, taking place during a flyby as it did, we already have plans of making up for its loss. Really, it was already in the later parts of its mission- we expected only a few flybys...." He continues on about the aim of the mission, but the soundbite is gathered.Reunion 3 is aimed towards Mesbin's second asteroidal moon- Thresomin. The data from Outreach VI needs a lander to help nail down its source, after all.The ascent from Mesbin is becoming almost routine now.The slowdown at Thresomin, however, is something near-entirely new.The speeds involved are immense- but the rocket booster holds out.It's discarded, and the spacecraft enters its own Thresomin orbit.A few orbits are spent using the spacecraft's little camera to find landing sites- no evidence of outgassing in the photos, though.It doesn't take long to descend.This first landing spot already shows evidence of outgassing- possibly volatile materials boiling off in the sun.Reunion 3 stays on the surface for a long while before hopping again.Up to the north, then...Remarkably, every landing site has shown signs of volative outgassing. It may be that Thresomin is very icy, just beneath its surface!There are fantastic sights to be had all across Thresomin- what a marvelous little moon.Unfortunately for Reunion 3, it falls in a crevasse near the north pole....Reunion 4 is very similar to its sister probe, but carries a modified form of cave study tool- much like the identification of high-pressure water-filled caves or of Mesbin's subsurface hydrogen ecosystems, it should be capable of figuring out Thresomin's internals without needing to drill into them.The spacecraft begins braking just a little late- but with the speeds involved, and the low gravity of Thresomin, a slight miss like this is corrected within half an orbit.Reunion 4, undettered, descends.Even just off the surface, the spacecraft's instruments are enough to determine- Thresomin is full of volatile materials, quite possibly of sorts that can be relatively easily refined into rocket fuel.Before the mission even begins its second hop, Mesbinite writers are envisioning networks of refuelling stations across Mesbin system- and Derbinite planners are gearing up to examine Derbin's own moons.