If we were to send a unmanned spaceship through the Sun. What material can survive?


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    $\begingroup$ By "survive," do you mean "stay solid?" If so, have you looked up the temperature of the core of the sun? How about the highest known melting point of any material? $\endgroup$ – pentane Nov 17 '15 at 15:14
  • $\begingroup$ Even if such a material did exist, it would still heat up, and anything inside the spacecraft not made of that material would melt, vaporize, and ionize. $\endgroup$ – pela Nov 17 '15 at 15:20

If we were to send a unmannedspaceship through the Sun. What material can survive?

A wide variety of materials might survive passing through the outer layer of the sun, but only if the spaceship is big enough, fast enough and has a thick enough sacrificial/ablative shell.

If the ship is slow, it doesn't really matter if the hull survives, most stuff inside would melt.

The solar core is much hotter and at a pretty high pressure. You'd expect that of the core of a nuclear fusion reactor that size.

  • Typical melting point of steel: 1370 C
  • Melting point of tungsten: 3400 C
  • Temperature of photosphere: 6000 C
  • Temperature of Sun's core: 15000000 C
  • Pressure in Sun's core: 4000000000000 psi

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