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BSC
-
Xylem
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Malware
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Hard disk
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Curative
-
Vitiligo
-
Syndrome
-
Recombination
-
Worm
-
Roaming
-
Chloasma
-
Push
-
Acusia
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Acoustic crest
-
Genotoxic
-
Shooting star
-
Kodiak bear
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American Bullfrog
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PET
-
Giant sequoia
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Down quark
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Haemagglutinin
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Winter solstice
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Noise pollution
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Bell pepper
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Amylose
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Cartagena Protocol
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Tyrannosaurus
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Anophthalmia
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Lumbar vertebra
Parsec
A parsec is the distance at which a star must be to have a parallax of 1 second of arc. (In fact there are no stars as close as that). 1 parsec = 3.2616 light-years.
Credit: Rennes Astronomy Society
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