RT @cosmos4u: Looked at the Moon today, said: it’s big, must be near perigee. And it is: fourmilab.ch/earthview/paca…. Try it, it’s easy! http://…
RT @cosmos4u: Looked at the Moon today, said: it’s big, must be near perigee. And it is: fourmilab.ch/earthview/paca…. Try it, it’s easy! http://…