THE HYLASA SYSTEMA star system discovered by human space exploration. It has two Earth-like moons orbiting a gas giant, which are mostly covered with water and small islands. They have no intelligent life, so are swiftly colonised. In my old childhood Galactic Conquest stories, Hylasa-A and Hylasa-B were somehow Jupiter-sized terrestrial planets that were like 60% water, and had intelligent subsurface life. Actually "terrestrial" planets that are mostly water CAN exist, but if Jupiter-sized, they'd just be ice giants. |
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pic - pic - pic Deasa A barren, scorched world not unlike Mercury, but larger. Surprisingly, this world is not tidally locked to the star, but rotates with a period of about 3 days. It is thought that a powerful collision with a comet caused it to begin rotating millions of years ago, and it's still slowing down. This world has an underground colony and vast patches of solar panels and heat exchangers. Energy is abundant in the colony, but frequent earthquakes and vulcanism must be contended with. In non-colonised areas, robots regularly drill deep into the magma, sacrificing themselves to create "safe" volcanoes. |
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pic - pic - pic AKAK-NARASH The name means "son of Narash", a legendary hero of the people of Hylasa B. This is a small, rocky world with a minimal atmosphere. It's surface is covered in frozen methane, which evaporates in daytime and then turns back into snow at night. This gives the planet a high albedo (that's "shininess", to you and me), making it brightly visible in the skies further out in the system. |
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HAKATH-NARASH The semi-jokingly named moon, which means "grandson of Narash", was discovered much later, after the Hylasians had discovered astronomy. It is a barren, rocky and dusty world. | |
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pic - pic - pic NARASH A earth-like-ish planet on the inner edge of the habitable zone. It seems to have had life at one point, but has been undergoing a huge flood basalt eruption for hundreds of thousands of years. The atmosphere is thick with sulphur and carbon dioxide. Some life may continue to live deep in the oceans. |
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pic - pic - pic VIDA A gas giant much like Luna, in the teddy bear system. It's inner core is heavily rocky, though crushed into magma, and it has a comparatively weak magnetic field, allowing moons to retain atmospheres and develop life on the surface. |
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MOON NAME Io-ish | |
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Hylasa-A Initially less-developed life. Communicated with Hylasa-B when at 18th century tech level, using fires. The two Hylasa moons orbit in that way that makes one of them periodically rise and recede in the sky of the other. Can't remember the details right now, as apparently the office needs to hear some event in the school replayed on a harsh-sounding, obnoxiously loud tablet speaker. Said event containing all sorts of obnoxious, noise-making shakers and contraptions, along with 2-second burts of pop songs at full volume, while the other teachers shout at each other across the room over it. Thanks for that. | |
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Hylasa-B The people of Hylasa-B developed technology more quickly than those of Hylasa-A. They often wondered if this other world which periodically appeared in their sky harboured life. Eventually, once at a mid-19th century tech level (in 1617, in our years) they set up a huge, obviously artificial cross of electric lights over a lake, and flashed it. The next time the planets approached each other, the people of Hylasa-A lit a similar huge cross of fires. Once at a 1950's tech level, they sent a space capsule to Hylasa-A, finding convergent evolution had made the people there remarkably similar to themselves. The crew of this capsule (and several subsequent ones) set up a radio, allowing for interplanetary communication. This early discovery of life on other worlds focused the minds of the Hylasians. They soon abandoned wars and decided to work together in the pursuit of science, particularly the people of Hylasa-A, who felt the need to "catch up". Having discovered life on one world, they wondered if life existed on other worlds, and worked hard at astronomy, unmanned and finally manned space exploration. | |
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