Is it a satellite or a planet? For years the question divided the astronomy community, but now most researchers agree: size does matter. Pluto just isn’t big enough to be a real planet, it is only a particularly adored satellite.

 
$21.95
Qty.


(300 characters remaining)
USA gift recipients will not see prices.

or add to wish list
Loading...
Added to Cart!


Printed with in Oregon, USA