NATO's never-ending encroachment on Russia's borders is breaking world records in mere days. Just last week, a new major airbase was opened in Albania
on March 9, the F-35 was confirmed to be certified to carry B61-12 thermonuclear gravity bombs.
Gravity bombs just means they fall down in response to gravity
It does not mean some super science fiction thing
They could have just said nuclear bombs but they call them nuclear gravity bombs so that those who do not know better think that it is more advanced than a regular nuclear bomb
The nucleat bombs that were allegedly dropped on Japan are gravity bombs also
Gravity bombs are not new technology