![]() |
|
|||||||
| Register | FAQ | Calendar | Today's Posts | Search |
![]() |
|
|
Thread Tools | Search this Thread | Display Modes |
|
#1
|
|||
|
|||
|
The extent expanded from about 40 percent to 97 percent over four days, a first in 30 years of satellite observations but in line with a historical pattern.
http://ads.pheedo.com/img.phdo?p=1 More... |