Rocket Size Comparison VERSION 2

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A rocket is a missile, spacecraft, aircraft or other vehicle that obtains thrust from a rocket engine. Rocket engine exhaust is formed entirely from propellant carried within the rocket before use. Rocket engines work by action and reaction and push rockets forward simply by expelling their exhaust in the opposite direction at high speed, and can therefore work in the vacuum of space.

In fact, rockets work more efficiently in space than in an atmosphere. Multistage rockets are capable of attaining escape velocity from Earth and therefore can achieve unlimited maximum altitude. Compared with airbreathing engines, rockets are lightweight and powerful and capable of generating large accelerations. To control their flight, rockets rely on momentum, airfoils, auxiliary reaction engines, gimballed thrust, momentum wheels, deflection of the exhaust stream, propellant flow, spin, and/or gravity.

Rockets for military and recreational uses date back to at least 13th century China. Significant scientific, interplanetary and industrial use did not occur until the 20th century, when rocketry was the enabling technology for the Space Age, including setting foot on the Earth's moon. Rockets are now used for fireworks, weaponry, ejection seats, launch vehicles for artificial satellites, human spaceflight, and space exploration.

Chemical rockets are the most common type of high power rocket, typically creating a high speed exhaust by the combustion of fuel with an oxidizer. The stored propellant can be a simple pressurized gas or a single liquid fuel that disassociates in the presence of a catalyst (monopropellants), two liquids that spontaneously react on contact (hypergolic propellants), two liquids that must be ignited to react, a solid combination of fuel with oxidizer (solid fuel), or solid fuel with liquid oxidizer (hybrid propellant system). Chemical rockets store a large amount of energy in an easily released form, and can be very dangerous. However, careful design, testing, construction and use minimizes risks.

INFO:WIKIPEDIA

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Soyuz FG:
The Soyuz-FG launch vehicle is an improved version of the Soyuz-U from the R-7 family of rockets, designed and constructed by TsSKB-Progress in Samara, Russia. It made its maiden flight on 20 May 2001, carrying a Progress cargo spacecraft to the International Space Station (ISS).

FALCON 9:
Falcon 9 is a two-stage-to-orbit medium lift launch vehicle designed and manufactured by SpaceX in the United States. It is powered by Merlin engines, also developed by SpaceX, burning liquid oxygen (LOX) and rocket-grade kerosene (RP-1) propellants. It was named after the Millennium Falcon and the nine engines of the rocket's first stage. The rocket evolved with versions v1.0 (2010–2013), v1.1 (2013–2016), v1.2 "Full Thrust" (2015–2018), and its Block 5 variant, flying since May 2018. Contrary to other rockets that are expended after the launch, Falcon 9 is partially reusable, with the first stage capable of re-entering the atmosphere and landing back vertically after separating from the second stage. This feat was achieved for the first time with the v1.2 version in December 2015.


Falcon Heavy:
Falcon Heavy is a partially reusable heavy-lift launch vehicle designed and manufactured by SpaceX. It is derived from the Falcon 9 vehicle and consists of a strengthened Falcon 9 first stage as a central core with two additional first stages as strap-on boosters.Falcon Heavy has the highest payload capacity of any currently operational launch vehicle, and the fourth-highest capacity of any rocket ever built, trailing the American Saturn V and the Soviet Energia and N1.

SpaceX conducted Falcon Heavy's maiden launch on February 6, 2018, at 3:45 p.m. EST (20:45 UTC). The rocket carried a Tesla Roadster belonging to SpaceX founder Elon Musk, as a dummy payload. The next Falcon Heavy launch is scheduled for early 2019.

New Glenn:
The New Glenn is a heavy lift orbital launch vehicle in development by Blue Origin. Design work on the vehicle began in 2012. The high-level specifications for the vehicle were publicly announced in September 2016. New Glenn is described as a 7-meter-diameter (23 ft), two- or three-stage rocket. Its first stage will be powered by seven BE-4 engines that are also being designed and manufactured by Blue Origin. Like the New Shepard suborbital launch vehicle that preceded it, the New Glenn's first stage is designed to be reusable.



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