Let Carl Sagan explain it....
.
.
.
.
.
.
.
.
#galaxies #galaxyandbeyond #galaxy #nasa #cosmos #universe #nebula #earth #stars #speedoflight #science #sciencefacts #sciencememes #iss #space #outerspace #deepspace #astro #astronaut #astronomy #physics
#galaxies #galaxyandbeyond #galaxy #nasa #cosmos #universe #nebula #earth #stars #speedoflight #science #sciencefacts #sciencememes #iss #space #outerspace #deepspace #astro #astronaut #astronomy #physics
|
