Will earth's core solidify in the future?

I'm going against the grain a little on this one: Almost definitely. John Stockwell is correct: The outer core continues to cool and solidify, and should solidify entirely within 1 to 2 billion years. read more

John Stockwell is correct: The outer core continues to cool and solidify, and should solidify entirely within 1 to 2 billion years. Timeline of the far future But let’s say that the estimates of core cooling are too low, and that the core stays molten for a while longer. read more

Radiogenic heating from decay of radioactive elements in the Earth's core. The final item is highly controversial. Most geochemists and geophysicists are of the opinion that there are but negligible amounts of radioactive elements (235 U, 238 U, 232 Th, 40 K) in the Earth's core. read more