Also known as: 天文学
A natural Science that studies celestial objects and the phenomena that occur in the cosmos.
It uses mathematics, physics, and Chemistry.
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Astronomy
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lovebrush chronicles
lovebrush chronicles · safebooru.org
original
original · safebooru.org
m87 black hole
by xtermination · rule34.xxx
original
original · by geneva bowers · safebooru.org
original
original · by geneva bowers · safebooru.org
original
original · by geneva bowers · safebooru.org
m87 black hole
by xtermination · rule34.xxx