Planets outside our solar system are way, way, way, way, way, way, way too small and dim to be seen in any detail by any space telescope.

Stars shine with the light of nuclear fusion; planets can only reflect the light of their parent star, and the teeny tiny fraction of the light that they reflect is almost always drowned out by the star's light.

Nebulae can be dozens of light-years wide; the famous "Pillars of Creation" 7,000 light-years away are about four light-years in length, or almost forty trillion kilometers. The largest planets are only about 150,000 km in diameter, or 250 million times smaller than the Pillars of Creation.