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Renegade Game Studios Renegade Game Studio | The Search for Planet X | Board Game | Ages 13+ | 1-4 Players | 60 Minutes Playing Time

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The instructions are very clear, so you can get up and running in minutes. TIP: You may find it helpful to start as we did, working together on a one player game to help each other learn tactics. The game board is good quality and really encapsulates the space theme. It’s double-sided, allowing you to play a standard and extended version. On the standard side, you have a solar system split into 12 sectors. You take on the role of an astronomer with a mission to map out the solar system by finding out what (comet, asteroid, dwarf planet, gas cloud, empty space or the elusive Planet X) is in each sector. Throughout the mid-20th century, estimates of Pluto's mass were revised downward. In 1931, Nicholson and Mayall calculated its mass, based on its supposed effect on the giant planets, as roughly that of Earth; [34] a value somewhat in accord with the 0.91 Earth mass calculated in 1942 by Lloyd R. Wylie at the US Naval Observatory, using the same assumptions. [35] In 1949, Gerard Kuiper's measurements of Pluto's diameter with the 200-inch telescope at Mount Palomar Observatory led him to the conclusion that it was midway in size between Mercury and Mars and that its mass was most probably about 0.1 Earth mass. [36]

He does identify “Solver’s Uncertainty” as one potential source of uncertainty, but I agree with him that games that focus on puzzles tend to be both artificial and limiting of creativity. He also rightly points out that puzzle solving is embedded in nearly every game, but in less rigid ways:If you’ve ever done any of those logic grid puzzles, you’ve got a good idea of what you’ll need to do in The Search for Planet X. It’s a process of elimination and using the scant information you’re given to lead to logical conclusions. It’s a really satisfying thing when it goes well, and the Eureka moments are fantastic. When you put two and two together and come up with four, well, that makes you feel like some kind of genius, and it’s great.

a b P.S. Lykawka & T. Mukai (2008). "An outer planet beyond Pluto and the origin of the trans-Neptunian belt architecture". Astronomical Journal. 135 (4): 1161–1200. arXiv: 0712.2198. Bibcode: 2008AJ....135.1161L. doi: 10.1088/0004-6256/135/4/1161. S2CID 118414447. Almost immediately, some astronomers questioned Pluto's status as a planet. Barely a month after its discovery was announced, on April 14, 1930, in an article in The New York Times, Armin O. Leuschner suggested that Pluto's dimness and high orbital eccentricity made it more similar to an asteroid or comet: "The Lowell result confirms the possible high eccentricity announced by us on April 5. Among the possibilities are a large asteroid greatly disturbed in its orbit by close approach to a major planet such as Jupiter, or it may be one of many long-period planetary objects yet to be discovered, or a bright cometary object." [31] [32] In that same article, Harvard Observatory director Harlow Shapley wrote that Pluto was a "member of the Solar System not comparable with known asteroids and comets, and perhaps of greater importance to cosmogony than would be another major planet beyond Neptune." [32] In 1931, using a mathematical formula, [ clarification needed] Ernest W. Brown asserted (in agreement with E. C. Bower) that the presumed irregularities in the orbit of Uranus could not be due to the gravitational effect of a more distant planet, and thus that Lowell's supposed prediction was "purely accidental". [33] Iorio, Lorenzo (2017). "Is the recently proposed Mars-sized perturber at 65–80 AU ruled out by the Cassini ranging data?". Frontiers in Astronomy and Space Sciences. 4: 28. arXiv: 1407.5894. Bibcode: 2017FrASS...4...28I. doi: 10.3389/fspas.2017.00028. S2CID 26844167.de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (2016). "Commensurabilities between ETNOs: a Monte Carlo survey". Monthly Notices of the Royal Astronomical Society Letters. 460 (1): L64–L68. arXiv: 1604.05881. Bibcode: 2016MNRAS.460L..64D. doi: 10.1093/mnrasl/slw077. S2CID 119110892. Hasegawa, Kyoko (28 February 2008). "Japanese scientists eye mysterious 'Planet X' ". BibliotecaPleyades.net . Retrieved 18 July 2016. There’s not enough information there to figure out where everything is, though, so how do you get more of it? In December 2015, astronomers at the Atacama Large Millimeter Array (ALMA) detected a brief series of 350GHz pulses that they concluded must either be a series of independent sources, or a single, fast moving source. Deciding that the latter was the most likely, they calculated based on its speed that, were it bound to the Sun, the object, which they named "Gna" after a fast-moving messenger goddess in Norse mythology, [97] would be about 12–25 AU distant and have a dwarf planet-sized diameter of 220 to 880km. However, if it were a rogue planet not gravitationally bound to the Sun, and as far away as 4000 AU, it could be much larger. [98] The paper was never formally accepted, and has been withdrawn until the detection is confirmed. [98] Scientists' reactions to the notice were largely sceptical; Mike Brown commented that, "If it is true that ALMA accidentally discovered a massive outer Solar System object in its tiny, tiny, tiny, field of view, that would suggest that there are something like 200,000 Earth-sized planets in the outer Solar System ... Even better, I just realized that this many Earth-sized planets existing would destabilize the entire Solar System and we would all die." [97] Constraints on additional planets [ edit ]

When Sedna was discovered, its extreme orbit raised questions about its origin. Its perihelion is so distant (approximately 76AU (11.4billionkm; 7.1billionmi)) that no currently observed mechanism can explain Sedna's eccentric distant orbit. It is too far from the planets to have been affected by the gravity of Neptune or the other giant planets and too bound to the Sun to be affected by outside forces such as the galactic tides. Hypotheses to explain its orbit include that it was affected by a passing star, that it was captured from another planetary system, or that it was tugged into its current position by a trans-Neptunian planet. [64] The most obvious solution to determining Sedna's peculiar orbit would be to locate a number of objects in a similar region, whose various orbital configurations would provide an indication as to their history. If Sedna had been pulled into its orbit by a trans-Neptunian planet, any other objects found in its region would have a similar perihelion to Sedna (around 80AU (12billionkm; 7.4billionmi)). [65] Excitement of Kuiper belt orbits [ edit ] Using public data on the orbits of the extreme trans-Neptunian objects, it has been confirmed that a statistically significant (62σ) asymmetry between the shortest mutual ascending and descending nodal distances does exist; in addition, multiple highly improbably (p < 0.0002) correlated pairs of orbits with mutual nodal distances as low as 0.2AU at 152AU from the Solar System's barycentre or 1.3AU at 339AU have been found. [103] Both findings suggest that massive perturbers may exist at hundreds of AUs from the Sun and are difficult to explain within the context of a uniform distribution of orbital orientations in the outermost Solar System. [104] a b c d e f g h i j k Morton Grosser (1964). "The Search For A Planet Beyond Neptune". Isis. 55 (2): 163–183. doi: 10.1086/349825. JSTOR 228182. S2CID 144255699. E. Myles Standish Jr. (May 1993). "Planet X: No Dynamical Evidence in the Optical Observations". Astronomical Journal. 105 (5): 2000–2006. Bibcode: 1993AJ....105.2000S. doi: 10.1086/116575. Osbourne, Hannah (23 June 2017). "Forget Planet9 - there's evidence of a tenth planet lurking at the edge of the solar system". Newsweek . Retrieved 23 June 2017.There is also a Conference symbol located in one of the sectors (two on the expert side of the board). As with the Theory symbol, when this is pointed at or passed over, pause the game, carry out a ‘Conference Phase’. de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl (1 May 2022). "Twisted extreme trans-Neptunian orbital parameter space: statistically significant asymmetries confirmed". Monthly Notices of the Royal Astronomical Society Letters. 512 (1): L6–L10. arXiv: 2202.01693. Bibcode: 2022MNRAS.512L...6D. doi: 10.1093/mnrasl/slac012. In 2005, astronomer Mike Brown and his team announced the discovery of 2003 UB 313 (later named Eris after the Greek goddess of discord and strife), a trans-Neptunian object then thought to be just barely larger than Pluto. [58] Soon afterwards, a NASA Jet Propulsion Laboratory press release described the object as the "tenth planet". [59]

Almost any multivariable strategy game creates puzzles, but these puzzles, unlike those of explicit puzzle games, emerge from the complexity of the mechanics of the game itself”. Although its mission did not involve a search for PlanetX, the IRAS space observatory made headlines briefly in 1983 due to an "unknown object" that was at first described as "possibly as large as the giant planet Jupiter and possibly so close to Earth that it would be part of this Solar System". [49] Further analysis revealed that of several unidentified objects, nine were distant galaxies and the tenth was " interstellar cirrus"; none were found to be Solar System bodies. [50] Brown, Mike; Rabinowitz, David; Trujillo, Chad (2004). "Discovery of a Candidate Inner Oort Cloud Planetoid". Astrophysical Journal. 617 (1): 645–649. arXiv: astro-ph/0404456. Bibcode: 2004ApJ...617..645B. doi: 10.1086/422095. S2CID 7738201.a b TJ Sherrill (1999). "A Career of Controversy: The Anomaly of T. J. J. See". Journal for the History of Astronomy. 30: 25–50. Bibcode: 1999JHA....30...25S. doi: 10.1177/002182869903000102. S2CID 117727302.

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