A Big Mining Pool is a group of cryptocurrency miners who combine their computing power to increase the chances of successfully mining new blocks. Instead of mining independently, which can be highly challenging and often inefficient, miners share resources to enhance their collective computational strength.

When a mining pool successfully mines a block, the rewards are distributed among all the participants based on their contributed computing power. This approach reduces the variance of rewards, allowing miners to receive smaller, more frequent payouts rather than facing long periods without rewards when mining alone.

Big Mining Pools dominate the mining landscape in many cases because they allow individual miners to have a steady income stream, even if they don’t have powerful hardware. However, concerns can arise regarding centralization, as large pools can gain significant control over the network, potentially leading to issues such as manipulation or attacks on the blockchain.