BLUE MOON

BLUE MOON & JUPITER:

According to folklore:
Yesterday's full Moon over North America
was a " Blue Moon "
because it was the second full Moon
in a calendar month.

If you were lucky enough to view the
"Blue Moon",
you also saw its companion
"Jupiter".

All night long,
the giant planet snuggled
next to the Moon.

The bright pair could be seen
with the naked eye.

The moons of Jupiter,
lunar mountains,
craters, and the Great Red Spot
were surprisingly
very easy to see.



A REAL BLUE MOON!

Blue Moons are supposed to be absurd,
but on May 21st,
the Moon over Hungary
really did turn blue.

Onlookers describe it as a
"unique and unforgettable"
experience.

The display was caused by
a Sahara dust storm
that filled the air above Hungary
with dust particles about 1 micron
(one millionth of a meter)
in diameter.

Clouds of micron-sized dust can act
as a color filter,
turning the Moon
truly blue.