How do you know if your “science” is right?

There is something called universal science. The principles on which this universe and everything in it is based on and runs.

If what you observe tallies with these principles, your science, the systematic enterprise that builds and organizes knowledge through testable explanations, observations, and predictions about the universe, is right.

Anything based on it works like a wonder.

Rocket science is primarily based on Newton's laws of motion, particularly the third law (action-reaction), and the principle of conservation of momentum. It integrates advanced aerospace engineering, physics, chemistry, and mathematics to design and launch vehicles that operate through propelling exhaust gas at high speeds.

These things work because you tallied your study on gravity with universal gravity. You now know how to overcome it to go into space.

Or use it in gravity assists, or slingshot maneuvers, increase a spacecraft's speed by using a planet's orbital momentum, acting like a cosmic "speed boost" without using extra fuel. By passing closely behind a moving planet, the spacecraft is pulled along by its gravity, stealing a tiny fraction of its orbital energy to accelerate. (1)

When it works so wonderfully, we know our science is right.

Pacemakers work because we know why the heart's natural electrical system fails and how to correct it.

A pacemaker is a small, battery-operated device implanted under the skin, usually below the collarbone, to regulate an irregular or slow heartbeat.

If our science is wrong, these things don’t work.

Other things that cannot be directly tested immediately, will be established as facts if they are tested again and again by colleagues in the field under various conditions in the future and are found to be true. If nobody can falsify your science, you can safely assume your science is correct at least for the time being.

But because of human mind limitations, tallying our work with ‘universal science’ takes a long, long time and need not always end in success. But as long as it works well, it is okay to think it is an evidence based fact.

Footnotes:

1. Explained: How NASA Spacecraft Use "Gravity Assist" To Manage Veloc...