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In the Dust of This Planet: Horror of Philosophy

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There's always death to look forward to: Nihilist Arby's and the cheerful nihilism of the Internet", The Awl, August 2, 2017. The Earth's Moon is thought to have formed as a result of a single, large head-on collision. [91] [92]

This is still 10–20 times more than the current mass in the main belt, which is now about 0.0005 M Earth. [59] A secondary depletion period that brought the asteroid belt down close to its present mass is thought to have followed when Jupiter and Saturn entered a temporary 2:1 orbital resonance (see below). The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later to have been captured by their planets. Still others, such as Earth's Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. Beyond Neptune, many sub-planet sized objects formed. Several thousand trans-Neptunian objects have been observed. Unlike the planets, these trans-Neptunian objects mostly move on eccentric orbits, inclined to the plane of the planets. The positions of the planets might have shifted due to gravitational interactions. [2] Planetary migration may have been responsible for much of the Solar System's early evolution. [ according to whom?] The outer edge of the terrestrial region, between 2 and 4AU from the Sun, is called the asteroid belt. The asteroid belt initially contained more than enough matter to form 2–3 Earth-like planets, and, indeed, a large number of planetesimals formed there. As with the terrestrials, planetesimals in this region later coalesced and formed 20–30 Moon- to Mars-sized planetary embryos; [53] however, the proximity of Jupiter meant that after this planet formed, 3million years after the Sun, the region's history changed dramatically. [49] Orbital resonances with Jupiter and Saturn are particularly strong in the asteroid belt, and gravitational interactions with more massive embryos scattered many planetesimals into those resonances. Jupiter's gravity increased the velocity of objects within these resonances, causing them to shatter upon collision with other bodies, rather than accrete. [54] Pessimism, Futility, and Extinction" Theory, Culture & Society interview with Thomas Dekeyser (17 March 2020). At the end of the planetary formation epoch, the inner Solar System was populated by 50–100 Moon-to- Mars-sized protoplanets. [49] [50] Further growth was possible only because these bodies collided and merged, which took less than 100million years. These objects would have gravitationally interacted with one another, tugging at each other's orbits until they collided, growing larger until the four terrestrial planets we know today took shape. [35] One such giant collision is thought to have formed the Moon (see Moons below), while another removed the outer envelope of the young Mercury. [51]Astronomers continue to come up empty in their search for Planet 9. A recent 2022 sky survey using the 6-meter Atacama Cosmology Telescope (ACT) in Chile found thousands of tentative candidate sources but none could be confirmed. Astronomers, however, are still hunting for another possible planet in our solar system, a true ninth planet, after mathematical evidence of its existence was revealed on Jan. 20, 2016. The alleged "Planet Nine," also called "Planet X," is believed to be about 10 times the mass of Earth and 5,000 times the mass of Pluto.

In contrast to the outer planets, the inner planets are not thought to have migrated significantly over the age of the Solar System, because their orbits have remained stable following the period of giant impacts. [35] Approximately 4.5 billion years ago a dark cloud of gas and dust began to collapse. As it shrank, the cloud flattened into a swirling disk known as a solar nebula, according to NASA Science.What’s going on in this passage is that the self-proclaimed Nihilist is, in truth, laying out the foundation of Immanuel Kant’s ethics. In Kant’s Critique of Pure Reason the philosopher marks the limits of thought, figures out just what it is that we can’t know and where the line is between say the noumenal world and the world as it is for itself, in an effort to proceed to what we can know and what we must do. Ultimately, the Solar System is stable in that none of the planets are likely to collide with each other or be ejected from the system in the next few billion years. [102] Beyond this, within fivebillion years or so, Mars's eccentricity may grow to around 0.2, such that it lies on an Earth-crossing orbit, leading to a potential collision. In the same timescale, Mercury's eccentricity may grow even further, and a close encounter with Venus could theoretically eject it from the Solar System altogether [99] or send it on a collision course with Venus or Earth. [104] This could happen within a billion years, according to numerical simulations in which Mercury's orbit is perturbed. [105] Moon–ring systems [ edit ] The Repeater Book of the Occult, co-edited with Tariq Goddard. Repeater Books, 2021. ISBN 978-1913462079.

Creative Biotechnology: A User's Manual, co-authored with Natalie Jeremijenko and Heath Bunting. Locus+, 2004. ISBN 978-1899377220. Formation of the Solar System after gas and dust accretion to a protoplanetary disk. The vast majority of this material was created from the primal supernova Darklife: Negation, Nothingness, and the Will-to-Life in Schopenhauer," Parrhesia no. 12 (2011), p. 3. Explore the solar system in greater detail with these interactive resources from NASA. Discover the wonders of the solar system with this educational material from ESA. See where the planets are in their current orbit of the sun with this interactive orrery from NASA. Bibliography The evolution of moon systems is driven by tidal forces. A moon will raise a tidal bulge in the object it orbits (the primary) due to the differential gravitational force across diameter of the primary. If a moon is revolving in the same direction as the planet's rotation and the planet is rotating faster than the orbital period of the moon, the bulge will constantly be pulled ahead of the moon. In this situation, angular momentum is transferred from the rotation of the primary to the revolution of the satellite. The moon gains energy and gradually spirals outward, while the primary rotates more slowly over time.

Pirani, Simona, et al. " Consequences of planetary migration on the minor bodies of the early solar system." Astronomy & Astrophysics 623 (2019): A169. Pluto is a very active ice world that's covered in glaciers, mountains of ice water, icy dunes and possibly even cryovolcanoes that erupt icy lava made of water, methane or ammonia. It is smaller than Earth's moon; its orbit is highly elliptical, falling inside Neptune's orbit at some points and far beyond it at others; and Pluto's orbit doesn't fall on the same plane as all the other planets —instead, it orbits 17.1 degrees above or below. The IAU defines a true planet as a body that circles the sun without being some other object's satellite; is large enough to be rounded by its own gravity (but not so big that it begins to undergo nuclear fusion, like a star); and has "cleared its neighborhood" of most other orbiting bodies. One unresolved issue with this model is that it cannot explain how the initial orbits of the proto-terrestrial planets, which would have needed to be highly eccentric to collide, produced the remarkably stable and nearly circular orbits they have today. [49] One hypothesis for this "eccentricity dumping" is that terrestrials formed in a disc of gas still not expelled by the Sun. The " gravitational drag" of this residual gas would have eventually lowered the planets' energy, smoothing out their orbits. [50] However, such gas, if it existed, would have prevented the terrestrial planets' orbits from becoming so eccentric in the first place. [35] Another hypothesis is that gravitational drag occurred not between the planets and residual gas but between the planets and the remaining small bodies. As the large bodies moved through the crowd of smaller objects, the smaller objects, attracted by the larger planets' gravity, formed a region of higher density, a "gravitational wake", in the larger objects' path. As they did so, the increased gravity of the wake slowed the larger objects down into more regular orbits. [52] Asteroid belt [ edit ]

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