what temperatures does earth's core reach?
And while scientists have never sent a probe to our planetâs core to obtain accurate measurements, various estimates have been made. For instance, it is believed that the temperature of the Earthâs inner core is as high as 7000 Â°C, whereas the outer core is thought to be between 4000 and 6000 Â°C. Meanwhile, the mantle, the region that lies just below the Earthâs outer crust, is estimated to be around 870 Â°C.