Rescue workers fanned across Turkey and Syria Tuesday in a second day of desperate searches to find survivors from the massive earthquake and aftershocks that had the death toll climbing by the hour.
Chinese surveillance balloons have flown over the U.S. at least four times in recent years. But the U.S. didn't learn about these cases until the intelligence community discovered them afterwards.
Search-and-rescue efforts are underway as the death toll began soaring after a powerful earthquake struck southeastern Turkey and northern Syria early Monday.
Gaziantep Castle in southeastern Turkey dates back to the Hittite Empire and in modern times has been a museum and tourist attraction. Parts of the building were destroyed by Monday's earthquake.
A powerful 7.8 magnitude earthquake has rocked wide swaths of Turkey and neighboring Syria, killing more than 3,400 people and injuring thousands more.
China on Monday accused the United States of indiscriminate use of force when the American military shot down a suspected Chinese spy balloon over the weekend.
In parts of West Africa, communities have designated biodiversity hotspots sacred and measure their value by the peace of mind they provide, rather than in dollars and cents.
Russia and Ukraine are waging a fierce war in the sky involving missiles, drones and air defense systems. Yet one thing makes this fight distinctive from previous air wars: pilots are extremely rare.