When planets are in the wrong order. (LHS 1903)

"LHS 1903 is a small red M-dwarf star that is cooler and shines less brightly than our Sun. Scientists used telescopes in space and on Earth to discover four planets orbiting LHS 1903. With those telescopes, they classified the three closest planets to the star as the innermost being rocky, and the two that follow it gas giants. Credit: ESA" (ScitechDaily, This Alien Solar System Doesn’t Follow the Rules – and Scientists Are Intrigued)

“LHS 1903 is a red dwarf star located about 116 light-years from Earth in the constellation Lynx, near 21 Lyncis. It is thought to be a member of the Milky Way's thick disk.” (Wikipedia, LHS 1903)

“It hosts four known exoplanets. Its planetary system has been described as "inside-out", as instead of the usual pattern where gas planets tend to form further out, its planets are arranged in a configuration where the innermost and outermost planets are rocky, while the middle planets are gas dwarfs.”(Wikipedia, LHS 1903)

“In the late 20th century, scientists often described planetary formation using our solar system as a template. In that view, small rocky planets form close to the Sun, while gas and ice giants form farther away. However, the discovery of more than 6,128 exoplanets across 4,560 systems, along with unusual types such as hot Jupiters and planets orbiting pulsars, suggests that our solar system may not be typical.” (ScitechDaily, This Alien Solar System Doesn’t Follow the Rules – and Scientists Are Intrigued)

“Hot Jupiters (sometimes called hot Saturns) are a class of gas giant exoplanets that are inferred to be physically similar to Jupiter (i.e., Jupiter analogues). But they have very short orbital periods (P < 10 days). The close proximity to their stars and high surface-atmosphere temperatures resulted in their informal name "hot Jupiters.” (Wikipedia, Hot Jupiter) 

Could planets change their place? This is a good question. The LHS 1903 is the red dwarf. The M-type star is far less bright than our Sun. The mass of that star is far lower than that of our Sun. That star has a planetary system of four known planets. The planetary system of LHS 1903. Fits in the Mercury trajectory. If we compare it with our solar system. 

The planet’s order in this system is interesting. The inmost and outmost planets from the star (LHS 1903, B and E) are rocky planets. And the center planets (LHS 1903 C and D) are mini Neptunes. Those mini Neptunes' mass is about six times that of Earth. And their diameter is about twice Earth’s diameter. 

“The location of the LHS 1903 system in the constellation Lynx. Credit: Stellarium.” (ScitechDaily, This Alien Solar System Doesn’t Follow the Rules – and Scientists Are Intrigued)

The LHS 1903 planetary system (Wikipedia, LHS 1903) 

Also, those two rocky planets have a very large mass. The fact is that. When we see the table of that solar system. We see. The outermost planet E is almost as massive as planet D, and it's also more massive than planet C. So, could that mean that the LHS 1903 is trapped some of those planets around it? If we think of the possibility. The planets changed their places. That requires that something. 

More massive than LHS 1903, it formed. Some kind of mass center. And then turned the entire solar system around. Could some. A very small thing, like a small black hole. Travel between those planets? This kind of thing could spin. The planetary system around that mass center. 

 In planet formation models, the rocky planets are nearest. The reason for that is the solar wind. That blows the light elements away from around the planet. But there is one thing that makes LHS 1903 interesting. The rocky planet is massive. That means it could also lose its gas layers. The cosmic event, like some kind of particle beam, can strip the light elements from around that planet. 

The massive “hot Jupiters” can be very close to their star. If there is a solar system. The innermost planet is a “hot Jupiter”. And others are lighter rocky planets. That can form in a situation where the star “robs” other planets than the “hot Jupiter” from other solar systems. In cases of “hot Jupiters,” the planet’s massive gravity can resist the starwind. 

https://scitechdaily.com/this-alien-solar-system-doesnt-follow-the-rules-and-scientists-are-intrigued/

https://en.wikipedia.org/wiki/Hot_Jupiter

https://en.wikipedia.org/wiki/LHS_1903

Uranus and Neptune might not be what they seem.

"Researchers have uncovered evidence that Uranus and Neptune could be far rockier on the inside than anyone expected. Their unusual magnetic fields and uncertain internal makeup show why new missions are needed to reveal what these planets are really like. Credit: Shutterstock" (ScitechDaily, New Findings Suggest Uranus and Neptune Are Not What They Seem)

“The Solar System is usually grouped into three main types of planets based on what they are made of: the four rocky terrestrial worlds (Mercury, Venus, Earth, and Mars), the two massive gas giants (Jupiter and Saturn), and the pair of ice giants (Uranus and Neptune). (ScitechDaily, New Findings Suggest Uranus and Neptune Are Not What They Seem)

“New research from a scientific team at the University of Zurich (UZH) suggests that Uranus and Neptune may not fit neatly into that final category. Their findings indicate that both planets could contain much more rock than previously assumed. The study does not argue that the two worlds must be water-rich or rock-rich; instead, it challenges the long-standing belief that an ice-heavy composition is the only viable explanation. This perspective is also supported by the discovery that the dwarf planet Pluto is primarily made of rock.”(ScitechDaily, New Findings Suggest Uranus and Neptune Are Not What They Seem)

New information suggests that Uranus and Neptune are rocky planets. This would be one of the most incredible findings in modern astronomy. The fact is that. Gravity doesn’t tell everything. About. The size of the planets.“Silicon is the eighth most common element in the universe by mass, but it very rarely occurs in its pure form in the Earth's crust. It is widely distributed throughout space in cosmic dust, planetoids, and planets in various forms of silicon dioxide (silica) or silicates. More than 90% of the Earth's crust is composed of silicate minerals, making silicon the second most abundant element in the Earth's crust (about 28% by mass), after oxygen.” (Wikipedia, Silicon). 

This means that if there is mainly silicon and lighter solid elements. Even. If the planet is large. 

It’s possible. It still has quite a weak gravity. Compared to its size. The massive rocky planets called “super earths” and “hot neptunes” are giving a tip that. Maybe there are misunderstandings about those two planets. The mass of Uranus is 14.536 times that of Earth, but that includes its massive atmosphere. The gravity on that planet’s surface is 0.886g. The mass of Neptune is 17.147 times that of Earth. Surface gravity of Neptune is 1.149g.  

As in the case of Uranus. Neptune's massive atmosphere. Raises that planet’s mass. So, are Uranus and Neptune gas planets? The gas giants are not always gas. They are probably quite small planets with a large atmosphere. But all of those planets have a point where solid layers begin. The gas giant formation begins. When. A quite small rocky point acts as the gravitational center. Then that gravitational center starts to collect gas and dust around it. 

The environment must be so stable that the solar wind doesn’t blow those gas and dust layers off, while the planet is forming. This means that planets like hot Jupiters. Or ultra-hot gas giants must form far from their suns.  The ultra-hot rocky planet can be closer to its star. And in some cases, those planets are made of melted iron. In cases like hot Jupiters, the massive gravity of those planets keeps them in form. If. Planet formation starts in interstellar space. That planet will turn. 

Into an extremely large. Interstellar traveller. This requires that the planet formation begins in an interstellar nebula, with no light elements. Those nebulae are supernova remnants and nova remnants. If. There are lots of heavy elements. Those elements cannot start fusion. There is another theoretical possibility. That the small star could turn into a planet. The idea is that the supernova near a small star or brown dwarf can push so much material away from that star that its fusion ends. 

https://scitechdaily.com/new-findings-suggest-uranus-and-neptune-are-not-what-they-seem/

https://en.wikipedia.org/wiki/Neptune

https://en.wikipedia.org/wiki/Silicon

https://en.wikipedia.org/wiki/Uranus

Organic molecules don’t mean life. And mysterious methane and rings in the Kuiper Belt.

 Organic molecules don’t mean life. And mysterious methane and rings in the Kuiper Belt. 

“An artist’s impression of plumes erupting onto the surface of Enceladus. Its fellow moon Titan is seen in the sky, and the distant Sun beyond. Credit: ESA/Science Office”

Saturn’s moon Enceladus has long dazzled scientists with its icy plumes that spew water and mysterious organic molecules into space, fueling hopes of a habitable ocean beneath. But new experiments suggest the story may be more complicated.”

“Researchers found that radiation bombarding Enceladus’s frozen surface could be producing many of the same organics detected in the plumes — meaning they might not come from the hidden ocean at all. This twist forces scientists to rethink how we interpret signs of habitability on icy moons.” (The Shocking Twist in the Search for Life on Saturn’s Icy Moon)

“Electron microscopy revealed chain structures resembling living organisms in meteorite fragment ALH84001” (Wikipedia, Allan Hills 84001). If those remnants are bacteria, they can be from Earth. There is a possibility that those bacteria. If they are bacteria. that came from Antarctic ice, and they traveled to the meteorite. Because its heat “called” those bacteria. Anyway, that meteorite is polluted. The temperature in Antarctica is not so low that it could keep that meteorite sterile. 

“An image of the rock named “Cheyava Falls” in the “Bright Angel formation” in Jezero crater, Mars collected by the WATSON camera onboard the Mars 2020 Perseverance rover. The image shows a rust-colored, organic matter bearing sedimentary mudstone sandwiched between bright white layers of another composition. The small dark blue/green to black colored nodules and ring-shaped reaction fronts that have dark rims, and bleached interiors are proposed to be potential biosignatures. Credit: NASA/JPL-Caltech/MSSS” (ScitechDaily, Strange Mars Mudstones May Hold the Strongest Clues Yet of Ancient Life)

“NASA’s Perseverance rover has uncovered mysterious mudstones in Mars’ Jezero Crater that contain organic carbon and strange mineral textures.” (ScitechDaily, Strange Mars Mudstones May Hold the Strongest Clues Yet of Ancient Life)

“These features, possibly shaped by redox reactions similar to those fueled by microbes on Earth, may represent potential biosignatures.” (ScitechDaily, Strange Mars Mudstones May Hold the Strongest Clues Yet of Ancient Life)

Confirmed life in our solar system is limited to planet Earth. All other harbors for life are hypothetical. It’s possible that there have been some kind of lifeforms on Mars, but before there is any laboratory analysis about samples brought from Mars, nothing is more uncertain than uncertain. NASA says that there is “strong evidence” that some primitive lifeforms, like prokaryotic bacteria, could have lived on Mars a long time ago. 

Confirmation about that thing can be very difficult. If there have been some bacteria on Mars, the thin atmosphere that lets UV-radiation reach the Mars surface can destroy all genetic material. From those bacteria.  Those remnants would be hollows in stones. Without DNA or RNA, it is impossible to confirm that some form is from bacteria. 

There are strange forms in some meteorites, but the problem is that those meteorites, including Allan Hills 84001 from Antarctica, are polluted. That means those primitive bacterial fossils, if they are bacterial fossils, can be from Earth. There have also been organic materials in Saturn's Enceladus moons' icy geysers. There is a possibility that these organic materials are formed due to sunlight. 

Maybe Saturn will pull ions to Enceladus, and that can cause the formation of those organic compounds. But as we know, there is a possibility that there can be lifeforms in that icy world. Otherwise, Organic molecules can form. Because of some kind of chemical reactions that have no biological origin. 

“An SwRI-led team used Webb telescope observations (white) to detect methane gas on the distant dwarf planet Makemake. Sharp emission peaks near 3.3 microns reveal methane in the gas phase above Makemake’s surface. A continuum model (cyan) is overlaid for comparison; the gas emission peaks are identified where the observed spectrum rises above the continuum. An artistic rendering of Makemake’s surface is shown in the background. Credit: Courtesy of S. Protopapa, I. Wong/SwRI/STScI/NASA/ESA/CSA” (ScitechDaily, Webb Telescope Detects Gas on Distant Dwarf Planet Makemake for the First Time)

Telescopes noticed gas on the dwarf planet Makemake. 

The surprise was that the gas JWST detected is methane. That means there are some chemical reactions on those distant worlds. Those dwarf planets like Makemake are so far away that they cannot get methane from places like Titan. And that is one of the most interesting things in the universe. There is a possibility that weak energy from the distant sun, along with some ions, can have so much energy that. It can push carbon and hydrogen together in a very low-energy but stable environment. 

 Makemake is far away from Earth in the Kuiper Belt. That dwarf planet is one of the coldest places in our solar system. That’s why existing gas is a surprise. But conditions in the Kuiper Belt are incredibly stable. Makemake can pull gases from space around it. And that thing makes it possible that those dwarf planets have a thin atmosphere. Those objects called trans-Neptunian objects TNOs are so far away from the sun that the solar wind has no force to blow those atmospheres away. And that’s why some dwarf planets like Makemake can have atmospheres. 

“Artist's impression of Quaoar with its ring and its moon Weywot” (Wikipedia, Quaoar)

“Quaoar compared to the Earth and the Moon” (Wikipedia, Quaoar)

Researchers noticed that the dwarf planet Quaoar may have another moon or some unknown ring system. Quaoar has a ring system and one known moon. That is an incredible thing, because that dwarf planet is very small. The ring system can form around that dwarf planet when its moon acts like Saturn’s and other gas planets’ rings. Shepherd moons that trap particles between them. 

The problem is that the shepherd moons are always on both sides of their ring. There is a possibility that Quaoar’s moon Weywot and its gravity can trap those particles between Quaoar and Weywot, but is that moon’s and Quaoar’s gravity so strong that they can trap those particles? 

But those rings are in the place where those planets’ Van Allen belts are. Shepherd moons from holes between rings. But the plasma ring. Around those gas giants is the thing that traps most of those particles. That means Quaoar must, or should have, some kind of magnetic field. 

That dwarf planet is mysterious. It's too small for internal nuclear reactions to form those plasma rings. Its moon seems very far away from that dwarf planet. And that is one of the most interesting things about that distant and mysterious object. 

https://phys.org/news/2025-09-discovery-moon-orbiting-mysterious-distant.html

https://scitechdaily.com/the-shocking-twist-in-the-search-for-life-on-saturns-icy-moon/

https://scitechdaily.com/space-mystery-unexpected-new-ring-system-discovered-in-our-own-solar-system/

https://scitechdaily.com/strange-mars-mudstones-may-hold-the-strongest-clues-yet-of-ancient-life/

https://scitechdaily.com/webb-telescope-detects-gas-on-distant-dwarf-planet-makemake-for-the-first-time/

https://en.wikipedia.org/wiki/Allan_Hills_84001

https://en.wikipedia.org/wiki/Quaoar