Picture a slingshot flinging a pebble, not towards the ground, but sideways with immense speed. Earth's gravity acts like the slingshot, constantly pulling the pebble in, but the sideways speed keeps it hurtling in a circle - that's our satellite! Launched by rockets, they achieve a delicate balance: fast enough to resist gravity's pull and fall, yet not so fast they escape Earth's grip entirely. Imagine this dance playing out across the globe, with satellites at different altitudes waltzing at varying speeds. Some skim close, whizzing at 28,000 km/h, while others, like graceful giants, circle further out, taking their time at 7,000 km/h. It's a continuous tango, fueled not by thrusters, but by the invisible strings of gravity and momentum, a testament to the beauty of orbital mechanics.