So there was the COBE satellite, which was launched in 1989, and we discovered these variations.
Il y a eu le satellite COBE, qui a été lancé en 1989, et on a découvert ces variations.
So there was the COBE satellite, which was launched in 1989, and we discovered these variations.
Il y a eu le satellite COBE, qui a été lancé en 1989, et on a découvert ces variations.