President Donald Trump, shelving comparisons about the size of a "nuclear button," said Saturday he is open to talking with the North Korean leader.
Two suicide bombers struck a church in Pakistan on Sunday, killing nine people and wounding more than 50 others.
French authorities said one more student died Friday after a regional train sliced open a school bus in southern France, raising the overall death toll to five children.
The permafrost thawing will affect the rest of the planet.
Astronomers have discovered a super-size black hole harkening back to almost the dawn of creation.