Most extrasolar planets are hot Jupiters, discovered in the infrared by the Spitzer Space telescope.
Indicate whether the statement is true or false
Question 2
Unlike the ultraviolet photons originally emitted by the embedded stars of an emission nebula, the photons emitted by the recombination of electrons with atoms:
A) do not escape the nebula.
B) escape the nebula.
C) are re-absorbed by neutral hydrogen atoms.
D) bounce around inside the nebula.
E) are scattered by the dust particles.