In the context of giant stars, helium fusion produces _____ that accumulate in an inert core.
A) nitrogen and carbon
B) hydrogen and neon
C) oxygen and neon
D) carbon and oxygen
Question 2
The ignition of helium in the core of a star changes the structure of the star. The star now makes energy in two locations by two different processes, _____.
A) carbon fusion in the core and helium fusion in the surrounding shell
B) helium fusion in the core and nitrogen fusion in the surrounding shell
C) helium fusion in the core and hydrogen fusion in the surrounding shell
D) nitrogen fusion in the core and helium fusion in the surrounding shell
The "Emu in the sky," a constellation defined by dark clouds rather than the stars.
Pseudostigmatidae is a family of tropical damselflies, known as helicopter damselflies, giant damsel
Hertzsprung-Russell diagram for a set of stars that includes the Sun
Plotting the Ages of Stars
How lateral inhibition produces contrast enhancement. (Based on Ratliff, 1972.)
A schematic, and somewhat hypothetical, view of SNARE–pin fusion