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Unlike humans, many plants have more than two sets of chromosomes. This trait may help them adapt to environmental upheaval, such as climate change.

Montana's 30-year-old restrictions on mining for precious metals like gold could soon be relaxed, as the mining industry makes a comeback in the U.S.

The Pentagon is ramping up its support of Ukraine in its war against Russia. The Defense Department is sending another $3 billion to Ukraine. That brings total U.S. aid to more than $13 billion.

President Biden meets U.K. Prime Minister Rishi Sunak to discuss Russia's war in Ukraine and developments in Northern Ireland.

The FDA approved Narcan for sale without a prescription. The opioid overdose reversal drug would be available at pharmacies and convenience stores nationally, increasing access as opioid deaths climb.

Abortion, guns, climate change and religion are just four of the topics the Supreme Court has yet to deal with. Opinions in those cases will be released later this summer.

The Syrian military, backed by Russia, is advancing further into the last rebel-held province of Syria, threatening a catastrophe for the millions of people there.

The Navy is looking at everything from new weapons to software as they wrestle with ways to keep ahead of an extended sea battle in the Middle East.

The head of the National Transportation Safety Board is promising a thorough investigation into the deadly midair collision between a passenger plane and an Army helicopter near Washington, D.C.

American political scientists and historians who study other countries - especially China - say they see more parallels today between their area of study and their own country.