Incidently, why is spacex an instantaneous launch window?
The necessity of an "instantaneous" launch window is due to physics: Any time a spaceship needs to catch up to the International Space Station, it must launch as the giant facility flies overhead. Falcon 9's ultracold fuel also warms up and vents out as it sits on the launchpad.
Quite so, what is the launch window for Mars? The duration of the daily launch windows varied from day to day. The launch windows lasted approximately between 30 minutes and two hours, with a unique launch opportunity every five minutes. The Perseverance rover will land on Mars on Feb. 18, 2021, at around noon PST (3 p.m. EST/8 p.m. UTC).
Yet, what does launch window mean?
The launch window is a term used to describe a time period in which a particular mission must be launched. If the spacecraft intends to rendezvous with another spacecraft, a planet, or other point in space, the launch must be carefully timed so that the orbits overlap at some point in the future.
Open the Run command window with a keyboard shortcut The fastest way to access the Run command window is to use the keyboard shortcut Windows + R. On top of being very easy to remember, this method is universal for all versions of Windows. Hold down the Windows key and then press R on your keyboard.
At exactly 10 seconds before launch, all the navigation instruments go from a rest position to active, you can see that navigation is tracking, that it knows where it wants to take the shuttle. A few seconds after that, the main engines light.
Rocket Launch: Decem 11:39 AM ET | SpaceX Falcon 9 CRS-21. SpaceX plans to launch a Falcon 9 rocket from Kennedy Space Center to deliver science investigations, supplies and equipment to the International Space Station.
That means you will have to spend 3-4 months at Mars before you can begin your return trip. All in all, your trip to Mars would take about 21 months: 9 months to get there, 3 months there, and 9 months to get back. With our current rocket technology, there is no way around this.
Astronauts' annual salaries are determined using a government pay scale, and starting out, typically fall under two grades: GS-12 and GS-13. According the US government's 2020 pay scales and a NASA job listing, a civilian astronaut in 2020 can earn between $66,167 and $161,141 per year.
— NASA's first astronauts to launch into space asked for a window. ... This spacecraft already had windows as part of its initial design, but even had it not, astronauts Bob Behnken and Doug Hurley were careful about what requests they made to customize their SpaceX Crew Dragon.
Nope. Some of them certainly landed upside down though - much soon than intended. And it was famously said of Werner Von Braun - father of the moon rocket, but also, in his Nazi youth, the V2 missile: “He aimed for the stars - but often hit London”.
Rockets do not fly perpendicular to gravity at all if the intention is to escape Earths gravity. They do not go straight up except in the initial phase of launch. A rockets engines are not used to directly counter gravity. They are used to accellerate the vehicle to orbital velocity also called escape velocity.
The first stage is ignited at launch and burns through the powered ascent until its propellants are exhausted. The first stage engine is then extinguished, the second stage separates from the first stage, and the second stage engine is ignited.