Israel unleashed airstrikes across Iran for a third day and threatened even greater force as some Iranian missiles evaded Israeli air defenses to strike buildings in the heart of the country.

Iran launched dozens of ballistic missiles toward Israel on Friday night in retaliation for Israel's surprise attack early Friday. Israel struck at the heart of the Iran's nuclear program, killing several nuclear scientists as well as high-ranking military leaders, according to Israeli officials.

The missile and air war that Israel and Iran have spent decades planning for has come, and it is spectacular and terrifying. Israeli officials say they need at least two weeks to degrade Iran’s nuclear and missile capabilities.