Prakash saal
(Light year se bheja gais)
Ek prakash saal (light year) utna duuri hae jitna me prakaas (light) ek saal me travel kare hae.
References[badlo | source ke badlo]
 | Ii vigyan article ek chhota panna hae. Aap iske lamba karke Wikipedia ke madat kare saktaa hae. |