دورة رائعة

It has been very useful for me

I Like universe and stars, Milky way and others galaxies, I Studied solar physic on our system, i think andromedia and our galaxy we be collusion en 3 billions years, the both will form one big galaxy. Actually andromedia is 2.5 Millions km of distance

One of my favorite topics

COURS TRES TRES BIEN EXPLIQUE MERCI A MONSIEUR LE FORMATEUR

the best thing he entire universe like wow it was one of the best series I have ever seen absolute W

GOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOD!

THANK YOU VERY MUCH

Thank you Phil Plait for your dedication. Very easy to understand and very well spoken.

It was good