Planetary nebulae are beautiful, and they are (emission) nebulae, but they have absolutely nothing to do with planets! They are actually the outer layers of a dying star that are ejected as the star evolves into a white dwarf.
Image: ESA/Hubble & NASA
Planetary nebulae are beautiful, and they are (emission) nebulae, but they have absolutely nothing to do with planets! They are actually the outer layers of a dying star that are ejected as the star evolves into a white dwarf.
Image: ESA/Hubble & NASA
The photons we receive from the Sun take a little over 8 minutes to reach us from the surface of the Sun. But they are created deep in the core of the Sun, and it takes them 100,000s of years to get from the core to the surface!
The photons we receive from the Sun take a little over 8 minutes to reach us from the surface of the Sun. But they are created deep in the core of the Sun, and it takes them 100,000s of years to get from the core to the surface!