1
00:00:02,435 --> 00:00:05,472
HI STARFAM! WISH GALILEO A HAPPY BIRTHDAY.

2
00:00:05,472 --> 00:00:12,212
457 YEARS AGO ON FEBRUARY 15, FAMOUS ITALIAN 
AS-TRONOMER GALILEO GALILEI WAS BORN.

3
00:00:12,212 --> 00:00:14,748
THIS WEEK IS THE SNOW MOON; 
THE FULL MOON OF FEB-RUARY,

4
00:00:14,748 --> 00:00:17,884
SO GET OUT AND WATCH THE SKIES 
LIKE OUR FA-VORITE ASTRONOMER.

5
00:00:17,884 --> 00:00:21,154
GRAB SOME BINOCULARS AND HEAD 
OUTSIDE TO LOOK AT THE MOON.

6
00:00:21,154 --> 00:00:23,323
IN THE 16TH CENTURY, IT WAS THOUGHT THE MOON WAS A

7
00:00:23,323 --> 00:00:26,593
PERFECT SPHERE AND WHEN THE MOON 
IS FULL IT CAN LOOK PRETTY FLAT.

8
00:00:26,593 --> 00:00:29,896
BUT, IF YOU LOOK AT IT DAY AFTER 
DAY YOU LL NOTICE THE DARKNESS

9
00:00:29,896 --> 00:00:33,333
MOVING ACROSS ITS FACE. IF THE MOON 
WAS SMOOTH, THE SHADOW WOULD BE

10
00:00:33,333 --> 00:00:37,971
SMOOTH TOO, BUT THROUGH BINOCULARS, YOU CAN 
RE-ALLY SEE THAT THE EDGE OF THAT SHADOW IS

11
00:00:37,971 --> 00:00:41,174
CRAGGLY! MEANING THE MOON HAS MOUNTAINS!

12
00:00:41,174 --> 00:00:44,277
THIS IS HOW GALILEO REALIZED THE MOON HAD CHAINS

13
00:00:44,277 --> 00:00:49,015
OF MOUNTAINS AND DEPTHS OF VALLEYS 
JUST LIKE FEATURES HERE ON EARTH.

14
00:00:49,015 --> 00:00:53,015
GET OUT THERE AND GET A LITTLE 
GALILEO EXCITEMENT! KEEP LOOKING UP.