Elon Musk Revealed the Artificial Gravity Starship 2022: To be able to walk on surfaces outside Earth as if we were walking on Earth has been the dream of many astronauts and scientists for decades. Muscle atrophy is just one of the issues astronauts have to deal with, but what if they didn’t have to? What if we could simply ‘create’ artificial gravity? Well, those questions may just have been answered as Elon Musk finally reveals artificial gravity Starship.
Gravity, or gravitation, is a natural phenomenon in which all entities with mass or energy are drawn to one another, including planets, stars, galaxies, and even light. Gravity lends weight to tangible objects on Earth, while the Moon’s gravity generates the ocean tides.
Gravitational attraction led the primordial gaseous stuff in the Universe to coalesce and become stars and the stars to gather together into galaxies. Hence gravity is responsible for many of the Universe’s large-scale structures.
Although gravity has an unlimited range, its effects weaken as things go further away. Gravity is best characterized by the general theory of relativity, which depicts gravity as the result of masses traveling along geodesic lines in a curved spacetime due to an unequal distribution of mass rather than as a force.
A black hole is the most severe example of spacetime curvature, from which nothing, not even light, can escape once past the event horizon. However, Newton’s law of universal gravitation, which describes gravity as a force causing any two bodies to be attracted toward each other, with magnitude proportional to the product of their masses and inversely proportional to the square of the distance between them, is a good approximation for most applications.
Archimedes, an ancient Greek philosopher, identified the triangle’s center of gravity. He also proposed that if two equal weights did not have the same center of gravity, their combined center of gravity would be at the middle of the line connecting their centers of gravity.
Gravity is a natural force, but how would artificial gravity work? The generation of an inertial force that replicates the effects of a gravitational force, generally through rotation, is known as artificial gravity.
Artificial gravity, also known as rotational gravity, is the appearance of a centrifugal force in a rotating frame of reference, as opposed to the force felt in linear acceleration, which is indistinguishable from gravity according to the equivalence principle. A rotating surface or chamber is crucial for creating make-believe gravity that works just as well as natural gravity.
Starship Plans Artificial gravity has been proposed as a possible remedy to the health hazards connected with space travel. Because the heart and blood arteries would be unable to adjust to the weightlessness, the Soviet space program concluded that a person could not live more than 14 days in space in 1964. T
his worry turned out to be unjustified since spaceflights have already lasted up to 437 days in a row, with operations aboard the International Space Station often lasting six months. However, the issue of human safety in space prompted researchers to look into the physical implications of extended weightlessness.
Over the course of nine days in June 1991, a Spacelab Life Sciences 1 flight conducted 18 experiments on two men and two women. It was discovered that in the absence of gravity, the reaction of white blood cells and muscle mass was reduced.
Additionally, blood volume was reduced by 10% in the first 24 hours spent in a weightless atmosphere. Long durations of weightlessness might induce brain enlargement and vision difficulties. When you return to Earth, the consequences of extended weightlessness continue to harm your body as fluids collect in your lower body, your heart rate increases, your blood pressure drops, and your capacity to exercise decreases. Many astronauts even had to be stretchered out of their crafts after landing back on Earth.
The Starship is brimming with potential due to its test successes. Because of the launch vehicle’s higher capacity and lower launch costs, former NASA Chief Scientist Waleed Abdalati believes Starship would permit more ambitious research missions.
He went on to say that the launch vehicle might be used to return space experiments as well as salvage space trash, which are defunct manmade objects in space. Because Starship has a big capacity, it can transport heavy gear to locations in space, such as drilling rigs on the surface of planets, according to NASA’s Ames Research Center.
The expedition might allow for considerably more in-depth investigation and knowledge of their interiors and subsurface resources, something that earlier launches vehicles couldn’t perform at a reasonable cost. Large-scale investigations and sample-return missions of Moon and Mars rock may be possible with the rocket.
These flights might be incorporated into SpaceX’s vehicle test landings and tailored to specific points of interest. A mission like this might assist solve many unresolved astronomical mysteries, such as previous lunar volcanism or alien life.
The aspirational objective of SpaceX has been to land the first humans on Mars by 2024, but Elon Musk said in October 2020 that 2024 would be the target date for an uncrewed trip. Elon Musk stated at the Axel Springer Award 2020 that he is quite convinced that the first crewed trips to Mars would take place in 2026.
The SpaceX Starship, a completely reusable super-heavy lift launch vehicle in development since 2018, is expected to be a crucial component of the mission. The spacecraft would first enter Earth orbit, where it would be refueled before heading to Mars, in order to carry a huge cargo.
The spaceship would be filled with locally manufactured propellants after landing on Mars in order to return to Earth. Mars isn’t the subject of SpaceX’s plans for Starship. SpaceX stated on September 14, 2018, that a hired passenger would be launched on the Starship in 2023 to fly by the Moon. Yusaku Maezawa, a Japanese tycoon, is the passenger.
The Starship will contain a 1,000 m3 (35,000 cu ft) pressurized capacity, as well as vast social rooms, central storage, a galley, and a solar storm shelter. The scope widens even further. In September 2016, Musk gave an overview presentation on Mars architecture that included concept slides describing trips to the Saturnian moon Enceladus, the Jovian moon Europa, Kuiper belt objects, a fuel store on Pluto, and even expeditions to the Oort Cloud.
Trips like these will involve the carrying of human passengers in zero gravity environments for exceedingly long time periods, and solving the issues relating to customer liability on trips to the moon. Will SpaceX Try?
By spinning the capsule around the Agena Target Vehicle, to which it was linked by a 36-meter cable, the Gemini 11 mission sought to create artificial gravity. By firing their side thrusters to gently twist the combined ship, they were able to produce a modest amount of artificial gravity, roughly 0.00015 g.
The resulting force was too slight for either astronaut to feel, although things were seen flowing towards the capsule’s “floor.” For a few minutes, the Gemini 8 mission achieved artificial gravity. However, this was due to an electrical malfunction that caused one thruster to fire continuously.
The crew was subjected to significant acceleration forces (about 4 g), and the mission had to be halted immediately. Elon Musk also claimed in 2021 that SpaceX was already considering how its next-generation Starship launch vehicle may be utilized in orbit.
Cargo Starships may be used to sweep up space junk with their mouth-like cargo bays, or a stripped-down, expendable variation of the rocket might be used to swiftly dispatch enormous spacecraft around the solar system, according to SpaceX CEO Elon Musk.
Musk also claims that SpaceX has examined connecting Starships together in space to generate a type of artificial gravity for passengers on multi-month flights between planets, as well as converting whole Starships into all-in-one orbital observatories a magnitude more powerful than Hubble.
SpaceX has also examined tying crewed Starships together and rotating them around the center of the tether to provide artificial gravity for crewmembers on months-long voyages between Earth, Mars, and other planets, according to Musk.
Since SpaceX initially proposed Starship in 2016, the tethered gravity notion has been spreading across fan circles. Despite decades of loose study by NASA and other universities, no significant experimental attempts — save for a single halting test during a Gemini mission in the 1960s – have ever been made.
For Starship, orbital refueling could easily decrease the crewed Earth-Mars transit time to 100 days or less, putting passengers in microgravity for a fraction of the time they spend on the International Space Station (ISS).
Given the extensive complexity and adjustments necessary to make such a system workable and Starships compatible, the value proposition of artificial gravity for 3-month journeys is likely to be far less evident. Regardless, Musk claims SpaceX has explored the notion, but he doesn’t indicate whether the firm opted to abandon it or study it further.
Needless to say, however, it may very well become an option SpaceX would seriously consider in order to hit its targets properly. Smallstars, a YouTuber, has suggested the Gravity Link Starship (GLS), a variant of SpaceX’s Starship that will be able to produce its own artificial gravity. Part of the inspiration for the concept came from science fiction.
Smallstars came up with the concept for the GLS after performing some studies on centripetal force. The GLS is essentially a “hub ship” (i.e., like the hub of a wheel) with a truss that unfolds and deploys robotically, thereby “acting as the wheel’s spokes,” as he describes in his films.
He calculated that a rotational velocity of 31 m/s would be adequate for a system with a radius of roughly 100 meters (97.99 m; or 321.5 ft), providing the sensation of 1 g, and revolving at a rate of around 3 rotations per minute using SpinCalculator.
In layman’s terms, this is how ‘real’ artificial gravity may be created. Starships will either produce their own gravity with a specific mechanism or by rotating portions, depending on how realistic a series is attempting to be.
While the former notion is similar to hyperdrive (in that it relies on physics that are either completely hypothetical or theoretical at this time), the latter is certainly possible. SpaceX could very well look to this third-party concept for inspiration.
It is under development as of October 2020, and prototypes have flown at low altitudes. On December 9th, 2020, a further flight to 12.5 kilometers took place. SpaceX plans to reach low Earth orbit in 2021, followed by regular flights and an in-orbit refueling demonstration in 2022. In 2023, a tourist expedition to the Moon is planned.
In 2024, SpaceX plans to launch the first unmanned Starship to Mars. Elon Musk is “very optimistic” that SpaceX will be able to put humans on Mars by 2026. Comment your thoughts about SpaceX’s future Mars colonization plans and whether they’ll be able to make artificial gravity work.
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Information Source: Elon Musk Live
Why can’t we take the Iss to the moon and back?
ISS doesn’t have enough fuel or thrusters
I’ve always liked the idea of having the upper stage fuel tank going orbit and being used as a section on a space station. It could have everything installed, then just fill it up with liquid oxygen. And disconnect it in orbit and link it up to make a complete wagon wheel shaped craft, like Werner and Walt designed back in the fifties