The scientific methodology does exactly that. It does not use people to arrive at conclusions. It uses instruments. Instruments do not have biases. They objectively measure things. These experiments are repeated over and over again by multiple parties until there can be no objection that some things are fact.

No matter who you are, for billions of years, the earth has revolved around the sun. That is a scientific fact. It os not a bias. Gravity exists. It is not a bias. Men can't fly. They don't have wings. It's not a bias. There is very definitely a thing called objective reality.