AP (satellite image from Commonwealth of Australia)
SINGAPORE - An iceberg the size of Luxembourg has broken off from a glacier in Antarctica after being rammed by another giant iceberg, scientists said Friday, in an event that could affect ocean circulation patterns.
The 965-square-mile iceberg broke off earlier this month from the Mertz Glacier's 100-mile floating tongue of ice that sticks out into the Southern Ocean.
The collision has since halved the size of the tongue that drains ice from the vast East Antarctic ice sheet. MSNBC