"We can't teach the world about radiation but we ... housing the source as a warning not to dismantle it or get any closer. Many manufacturers plan to use the symbol on new large sources.

Russia says its forces captured the village of Berezivka in their latest breakthrough in eastern Ukraine’s Donetsk region, where Ukrainian defenses are creaking.

Anyone uploading videos of their scenic hike in a rural area with 5G is exposed to nearly twice the radiation of someone in a city, according to a new study. Researchers believe the extra ...