Didn't we learn a few months ago that Everest isn't the highest peak after all? There is another behind it that is a few feet higher.
Nope, Mt. Everest is the highest peak in the world. In the last couple of years, "they" have changed the elevation for it from 29,028 feet to 29,035 feet. The change was made by the National Geographic Society and geological groups after using lasers and other high tech equipment to figure out how high it is.
http://classic.mountainzone.com/features/everestht/
There are none higher.
K2 - the second highest is 28,250 feet.
See here for more about rumor you mentioned:
http://www.jimloy.com/geology/everest.htm