how do scientists know the Earth’s core is liquid if no one has ever seen it or extracted a sample?

Question

how do scientists know the Earth’s core is liquid if no one has ever seen it or extracted a sample?

In: Earth Science

Answer 1

They *don’t know* and no true scientist would claim so. It is a highly likely theory however because many phenomena and measurements that we actually can observe fit a theoretical liquid core much better than a theoretical solid one.