🚀 Step 1: Beating Gravity at Liftoff
A rocket leaves the pad when its engines push harder than Earth’s gravity pulls it down. Burning fuel creates hot exhaust gases that blast out of the engine; by Newton’s Third Law (“for every action, an equal and opposite reaction”), that push of gas downward creates an equal push upward on the rocket—this is thrust. As soon as thrust is greater than the rocket’s weight, the rocket starts to rise.

📶 Step 2: Climbing, Turning, and Shedding Weight
At first, the rocket goes mostly straight up, punching through the thickest part of the atmosphere where air resistance is strongest. Very soon it tilts and flies on a curved path called a gravity turn, gradually pointing more sideways than straight up—this is how it starts building the sideways speed needed for orbit, not just height. Along the way, empty lower stages are dropped to shed dead weight, letting the remaining stages accelerate more easily with the fuel they have left.

🌍 Step 3: Reaching Orbital Speed
Getting to “space” (about 100 km up) is actually the easy part; staying there means going sideways around Earth fast enough that you keep falling around the planet instead of back to the ground. To reach a low orbit, the upper stage has to accelerate the spacecraft to roughly 7–8 kilometers per second—about 28,000 km/h—before shutting its engines off in a precise orbital insertion burn. If it goes too slow, it falls back; too fast, and it can even escape Earth’s gravity entirely.

💡 The Big Idea to Remember
A rocket launch is really a three‑part challenge:

Once you see those three steps, every dramatic launch suddenly makes a lot more sense.