Author Question: Most extrasolar planets are hot Jupiters, discovered in the infrared by the Spitzer Space telescope. ... (Read 81 times)

mmm · **on:** Jul 27, 2018

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.